Merge pull request #29 from arthurdenner/docs/add-use-lax-to-readme

docs: Add use-lax to the README.md
fix merge
2026-04-24 03:01:10 -04:00 · 2019-04-03 07:17:58 +01:00 · 2019-04-03 07:16:56 +01:00 · 2019-04-03 07:16:26 +01:00 · 2019-04-02 08:24:08 +01:00 · 2019-04-02 08:23:49 +01:00
37 changed files with 1405 additions and 319 deletions
--- a/21
+++ b/21
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2019 Alex Fox
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
--- a/README.md
+++ b/README.md
@@ -1,14 +1,18 @@
 # lax.js

-Simple & light weight (2kb minified & zipped) vanilla javascript plugin to create *smooth* & beautiful animations when you scrolllll! Harness the power of the most intuitive interaction and make your websites come alive!
+Simple & light weight (<3kb gzipped) vanilla javascript plugin to create *smooth* & beautiful animations when you scrolllll! Harness the power of the most intuitive interaction and make your websites come alive!

 [>>> DEMO <<<](https://alexfox.dev/laxxx/)

-![](https://i.imgur.com/DHhlrM3.gif) 
+![](https://i.imgur.com/Jbkna80.gif) 

-## Getting started
+[>>> MARIO DEMO <<<](https://alexfox.dev/laxxx/sprite.html)

-### NPM setup
+![](https://i.imgur.com/GGQFucZ.gif)
+
+## Getting Started
+
+### NPM Setup

 ```bash
 npm install lax.js
@@ -17,7 +21,7 @@ npm install lax.js
 import lax from 'lax.js'
 ```

-### Basic browser setup
+### Basic Browser Setup
 1) Add lax.js to your html

 ```html
@@ -28,35 +32,46 @@ import lax from 'lax.js'

 ```javascript
 window.onload = function() {
-	lax.setup({ /* opts */ }) // init
-	  
-	document.addEventListener('scroll', function(e) {
-	  lax.update(window.scrollY) // update every scroll
-	}, false)
+	lax.setup() // init

-	lax.update(window.scrollY) // set initial positions
+	const updateLax = () => {
+		lax.update(window.scrollY)
+		window.requestAnimationFrame(updateLax)
+	}
+
+	window.requestAnimationFrame(updateLax)
 }
 ```


-3) Add attributes to the HTML tags you want to animate e.g.
+3) Add class and attributes to the HTML tags you want to animate e.g.
 ```html
-<p data-lax-preset="spin fadeInOut">Look at me goooooo!</p>
+<p class="lax" data-lax-preset="spin fadeInOut">Look at me goooooo!</p>
 ```

 4) Scroll and enjoy!

-## Presets
+### Usage With React, Vue.js & DOM Changes
+To increase performance lax.js indexes the list of elements to animate when the page loads. If you're using a library like React or vue.js, it is likely that you are adding elements after the initial `window.onload`. Because of this you will need to call `lax.addElement(domElement)` when you add components to the DOM that you want to animate. 

-The easiest way to get started is to use the presets via the `data-lax-preset` attribute. You can chain multiple presetes together for e.g. `data-lax-preset="blurOut fadeOut spin"`. Some presets also support an optional strength e.g. `data-lax-preset="blurOut-50"`
+See below for working examples:
+* [react](https://codepen.io/alexfoxy/pen/PLaKaE)
+* [react (using hooks)](https://github.com/arthurdenner/use-lax)
+* [vue](https://codepen.io/alexfoxy/pen/ZPRZBq)
+
+You can also call `lax.removeElement(domElement)` when the component unmounts.
+
+
+## Presets
+The easiest way to get started is to use the presets via the `data-lax-preset` attribute. You can chain multiple presets together for e.g. `data-lax-preset="blurOut fadeOut spin"`. Some presets also support an optional strength e.g. `data-lax-preset="blurOut-50"`.

 See the list of [Supported Presets](#supported-presets) for details.

 ## Custom Animations

-You can easily create your own effects. Just add an attribute to your HTML tag (see [Supported Attribute Keys](#supported-attribute-keys)) with an array of values. These arrays take the format of `scrollPos val, scrollPos val, ...` e.g:
+You can easily create your own effects. Just add an attribute to your HTML tag (see [Supported Attribute Keys](#supported-attribute-keys)) with an array of values. These arrays take the format of `scrollPos val, scrollPos val, ... | option=val` e.g:
 ```html
-<p data-lax-opacity="0 1, 100 1, 200 0">
+<p class="lax" data-lax-opacity="0 1, 100 1, 200 0 | loop=200">
 	I start to fade out after the window scrolls 100px
 	and then I'm gone by 200px!
 </p>
@@ -64,36 +79,76 @@ You can easily create your own effects. Just add an attribute to your HTML tag (

 By default the `scrollPos` is `window.scrollY` but you can use an element distance from the top of the screen instead. You can either pass in a selector `data-lax-anchor="#bio"` or set it to use itself `data-lax-anchor="self"` (this is the default for all presets) e.g.
 ```html
-<p data-lax-opacity="200 1, 100 1, 0 0" data-lax-anchor="self">
+<p class="lax" data-lax-opacity="200 1, 100 1, 0 0" data-lax-anchor="self">
 	I start to fade out after I'm 100px away from the top of the window
 	and then I'm gone by the time I reach the top!
 </p>
 ```

-There are also some shortcuts for useful values: 
+### Special Values

 | Key     	| Value           |
 | ------------- | ------------- |
 | vw       	| window.innerWidth  |
 | vh     	| window.innerHeight |
-| elw     	| targetElement.clientHeight |
-| elh     	| targetElement.clientWidth |
+| elw     	| targetElement.clientWidth |
+| elh     	| targetElement.clientHeight |

 You can use these instead of integer values for the scrollPos  e.g.
 ```html
-<p data-lax-opacity="0 1, vh 0">
+<p class="lax" data-lax-opacity="0 1, vh 0">
 	I fade out as the page scrolls down and
 	I'm gone when the page has scrolled the view port height!
 </p>
 ```

-You can also do calculations using `( )` e.g.
+### Calculated Values
+
+You can also use vanilla JS within `( )` for calculations and access to more variables e.g.
 ```html
-<p data-lax-opacity="0 1, (vh*0.5) 0">
+<p class="lax" data-lax-opacity="0 1, (document.body.scrollHeight*0.5) 0">
 	I fade out as the page scrolls down and
-	I'm gone when the page has scrolled half the view port height!
+	I'm gone when the page has scrolled 50%
+	down the entire page height!
 </p>
 ```
+
+### Options
+
+You can pass options into your custom animations for more control e.g. 
+
+```html
+<p class="lax" data-lax-opacity="0 1, 100 0, 200 100 | loop=200 offset=100 speed=2">
+	I start at 0 opacity and
+	fade in and out every 50px
+</p>
+```
+
+| Option     	| Effect  | 
+| ------------- | -------------	| 
+| loop      	| modulus the input scrollY position so the animation will loop every `loop` pixels |
+| offset     	| add `offset` to scrollY position so the animation will begin at this point |
+| speed     	| multiplies the input scrollY position by `speed` to change the speed of the animation |
+
+
+## Responsive Design
+You can set multiple presets and animations for different screen widths. When setting up lax you need to pass in your screen width breakpoints e.g.
+```javascript
+lax.setup({
+    breakpoints: { small: 0, large: 992 }
+})
+```
+Then you can define presets or transforms per breakpoint. 
+```html
+<p class="lax" data-lax-preset_small="spin">
+	I only spin when the screen is smaller than 992px.
+</p>
+
+<p class="lax" data-lax-scale_small="0 1, 500 0" data-lax-scale_large="0 1, 500 2">
+	I shrink when the screen is smaller than 992px but grow when the screen is larger 992px.
+</p>
+```
+
 ## Supported Presets

 | Preset     	| Default Strength | 
@@ -121,7 +176,8 @@ You can also do calculations using `( )` e.g.
 | zoomInOut    	| 0.2 		|
 | zoomIn     	| 0.2 		|
 | zoomOut     	| 0.2 		|
-
+| swing     	| 30		|
+| speedy     	| 30 		|

 ## Supported Attribute Keys

@@ -153,6 +209,33 @@ Filters (note - these may be unperformant on low powered machines)
 | saturate     | data-lax-saturate |
 | grayscale     | data-lax-grayscale |

+Other
+
+| Filter     | Key           |
+| ------------- | ------------- |
+| background position | data-lax-bg-pos  |
+| background position-x | data-lax-bg-pos-x  |
+| background position-y | data-lax-bg-pos-y |
+
+	
+
+## Sprite Sheet Animations
+You can create animations using sprite sheets. See a demo [here](https://alexfox.dev/laxxx/sprite.html).
+
+The `data-lax-sprite-data` is required and formated like so `[frameWidth, frameHeight, frameCount, columnCount, scrollStep]`. You can either set the image using CSS or the `data-lax-sprite-image` attribute. e.g.
+
+```html
+<div 
+	class="lax"
+	data-lax-sprite-data="500,500,36,36,10"
+	data-lax-sprite-image="./spritesheet.png"
+/>
+```
+
+You can turn a gif or a video into a sprite sheet with this tool: https://ezgif.com/gif-to-sprite
+
+Note: current implimentation requires the element to be the same size as the frame width & height.
+
 ## Custom Presets
 To avoid duplicate code you can define your own presets with a list of attributes e.g.
 ```javascript
@@ -165,25 +248,40 @@ lax.addPreset("myCoolPreset", function() {
 ```
 You can then access this preset like this:
 ```html
-<p data-lax-preset="myCoolPreset">
+<p class="lax" data-lax-preset="myCoolPreset">
 	I'm the coolest preset in the world 😎
 </p>
 ```

+## Performance Tips
+
+* Avoid nesting lax enabled elements within each other, you'll get better performance using lax with smaller elements in the dom tree.
+* Avoid transforms on large elements, e.g. full screen backgrounds.
+* By default elements that have opacity 0 aren't updated. You can either manually set up a `data-lax-opacity` to control this yourself or use `data-lax-optimize` which will set the elements opacity to 0 when it goes off -screen. 
+* By default `-webkit-backface-visibility: hidden;` is added to your elements style to encourage the browser to render that object as a layer on the GPU and increase performance. To turn this off add `data-lax-use-gpu="false"` to your element.
+
+
 ## Notes

-### Performance
-By default `-webkit-backface-visibility: hidden;` is added to your elements style to encourage the browser to render that object as a layer on the GPU and increase performance. To turn this off add `lax-optimize="false"` to your element.
+### Screen Rotating & Resizing 
+As some values (vh, vw, elh, elw) are calculated on load, when the screen size changes or rotates you might want to recalculate these. E.g.
+```
+window.addEventListener("resize", function() {
+	lax.populateElements()
+});
+```
+Be warned, on mobile, a resize event is fired when you scroll and the toolbar is hidden so you might want to check if the width or orientation has changed.

 ### Scroll Wheels
-Scroll wheels only icrement the scroll position in steps which can cause the animations to look janky. You can use the SmoothScroll (http://www.smoothscroll.net/) plugin to smooth this out, however there maybe performance implications that need investigating.
+Scroll wheels only increment the scroll position in steps which can cause the animations to look janky. You can use the SmoothScroll (http://www.smoothscroll.net/) plugin to smooth this out, however there maybe performance implications that need investigating.
+
+### Merging Existing Styles
+Only inline styles for transforms and filters will be merged in to the animation. Transforms and filters derived from CSS will be overwritten.

 ## To Do / Ideas
-* Add debug mode
-* Elastic bouncing values
-* Optimise elements that go off screen
-* Impliment a tween for scroll wheels to remove dependancy on smoothscroll
-* Better error reporting
-* Add "momentum" as option for anchor & presets
-* Move presets to lax-presets.js to reduce base library size
+* Implement a tween for scroll wheels to remove reliance on smoothscroll
+* A way to add weight/momentum to moving objecs
+* More cool demos
+* More concise read me for react / vue.js
+* ~~Support for sprite sheet animations~~

--- a/0
+++ b/0
--- a/dev/inertia.html
+++ b/dev/inertia.html
@@ -0,0 +1,69 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta name="viewport" content="width=device-width, initial-scale=0.75, maximum-scale=0.75, minimum-scale=0.75">
+
+  <link href="https://fonts.googleapis.com/css?family=Montserrat:300,600,800" rel="stylesheet">
+  <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.7.2/css/all.css" integrity="sha384-fnmOCqbTlWIlj8LyTjo7mOUStjsKC4pOpQbqyi7RrhN7udi9RwhKkMHpvLbHG9Sr" crossorigin="anonymous">
+
+  <script src="./lib/lax.min.js"></script>
+  <!-- <script src="../src/lax.js"></script> -->
+
+  <script type="text/javascript">
+    window.onload = function() {
+      document.getElementById("main").classList.add("loaded")
+
+      lax.setup()
+
+      let toAdd = 0
+      let lastY = 0
+      const scrolls = [0,0,0,0,0]
+      const update = () => {
+        scrolls.unshift()
+        if(lastY !== window.scrollY) scrolls.push(window.scrollY)
+        lastY = window.scrollY
+        const sum = scrolls.reduce(function(a, b) { return a + b; });
+        const y = sum / scrolls.length
+
+        lax.update(y)
+        window.requestAnimationFrame(update)
+      }
+
+      window.requestAnimationFrame(update)
+      
+
+
+    }
+  </script>
+
+  <style>
+    body,html {
+      margin:0;
+      padding:0;
+      color: #F3F4F5;
+      background: #191818;
+      overflow-x: hidden;
+      height: 10000vh;
+      font-family: 'Montserrat', sans-serif;
+    }
+
+    #letter {
+      width: 10vw; 
+      margin-left: 10vw;
+      position: fixed;
+      top: 20vh;
+    }
+
+  </style>
+</head>
+
+
+<body>
+  <div id="main">
+    <div id="header" class="section">
+      <img src="./img/a.png" id="letter" data-lax-translate-x="0 0, 1000 1000" />
+    </div>
+
+  </div>
+
+</body>
--- a/dev/js/stats.js
+++ b/dev/js/stats.js
@@ -0,0 +1,5 @@
+// stats.js - http://github.com/mrdoob/stats.js
+(function(f,e){"object"===typeof exports&&"undefined"!==typeof module?module.exports=e():"function"===typeof define&&define.amd?define(e):f.Stats=e()})(this,function(){var f=function(){function e(a){c.appendChild(a.dom);return a}function u(a){for(var d=0;d<c.children.length;d++)c.children[d].style.display=d===a?"block":"none";l=a}var l=0,c=document.createElement("div");c.style.cssText="position:fixed;top:0;left:0;cursor:pointer;opacity:0.9;z-index:10000";c.addEventListener("click",function(a){a.preventDefault();
+u(++l%c.children.length)},!1);var k=(performance||Date).now(),g=k,a=0,r=e(new f.Panel("FPS","#0ff","#002")),h=e(new f.Panel("MS","#0f0","#020"));if(self.performance&&self.performance.memory)var t=e(new f.Panel("MB","#f08","#201"));u(0);return{REVISION:16,dom:c,addPanel:e,showPanel:u,begin:function(){k=(performance||Date).now()},end:function(){a++;var c=(performance||Date).now();h.update(c-k,200);if(c>g+1E3&&(r.update(1E3*a/(c-g),100),g=c,a=0,t)){var d=performance.memory;t.update(d.usedJSHeapSize/
+1048576,d.jsHeapSizeLimit/1048576)}return c},update:function(){k=this.end()},domElement:c,setMode:u}};f.Panel=function(e,f,l){var c=Infinity,k=0,g=Math.round,a=g(window.devicePixelRatio||1),r=80*a,h=48*a,t=3*a,v=2*a,d=3*a,m=15*a,n=74*a,p=30*a,q=document.createElement("canvas");q.width=r;q.height=h;q.style.cssText="width:80px;height:48px";var b=q.getContext("2d");b.font="bold "+9*a+"px Helvetica,Arial,sans-serif";b.textBaseline="top";b.fillStyle=l;b.fillRect(0,0,r,h);b.fillStyle=f;b.fillText(e,t,v);
+b.fillRect(d,m,n,p);b.fillStyle=l;b.globalAlpha=.9;b.fillRect(d,m,n,p);return{dom:q,update:function(h,w){c=Math.min(c,h);k=Math.max(k,h);b.fillStyle=l;b.globalAlpha=1;b.fillRect(0,0,r,m);b.fillStyle=f;b.fillText(g(h)+" "+e+" ("+g(c)+"-"+g(k)+")",t,v);b.drawImage(q,d+a,m,n-a,p,d,m,n-a,p);b.fillRect(d+n-a,m,a,p);b.fillStyle=l;b.globalAlpha=.9;b.fillRect(d+n-a,m,a,g((1-h/w)*p))}}};return f});
--- a/dev/performance.html
+++ b/dev/performance.html
@@ -0,0 +1,66 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta name="viewport" content="width=device-width, initial-scale=0.75, maximum-scale=0.75, minimum-scale=0.75">
+  <script src="../src/lax.js"></script>
+  <script src="./js/stats.js"></script>
+
+  <script type="text/javascript">
+
+
+    window.onload = function() {
+    	var stats = new Stats();
+		stats.showPanel( 0 ); // 0: fps, 1: ms, 2: mb, 3+: custom
+		document.body.appendChild( stats.dom );
+
+		for(let i=0; i<1000; i++) {
+			const el = document.createElement("img")
+			el.src="../docs/img/a.png"       
+  		el.className="lax"
+  		el.style.width = 50 + 'px'
+  		el.style.height = 50 + 'px'
+  		el.style.left = 50*(i%25) + 'px'
+  		el.style.top = 50*Math.floor(i/25) + 'px'
+      el.style.position = "absolute"
+  		el.setAttribute("data-lax-rotate","0 0, 500 1000")
+  		el.setAttribute("data-lax-opacity","0 1, 500 0")
+  		el.setAttribute("data-lax-scale","0 1, 500 0.5")
+  		document.body.appendChild(el)
+		}
+
+    	lax.setup()
+	      
+    	let i = 0
+	      const update = () => {
+	      	stats.begin();
+	        lax.update(i%500)
+	        i++
+		  	stats.end();
+	        window.requestAnimationFrame(update)
+	      }
+
+	      window.requestAnimationFrame(update)
+    }
+
+  </script>
+
+  <style>
+    body,html {
+      margin:0;
+      padding:0;
+      color: #F3F4F5;
+      background: #191818;
+      overflow-x: hidden;
+      height: 500vh;
+      font-family: 'Montserrat', sans-serif;
+    }
+
+    img {
+    	position: fixed;
+    }
+  </style>
+</head>
+
+<body>
+
+</body>
--- a/dev/reactive.html
+++ b/dev/reactive.html
@@ -0,0 +1,90 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta name="viewport" content="width=device-width, initial-scale=0.75, maximum-scale=0.75, minimum-scale=0.75">
+
+  <link href="https://fonts.googleapis.com/css?family=Montserrat:300,600,800" rel="stylesheet">
+  <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.7.2/css/all.css" integrity="sha384-fnmOCqbTlWIlj8LyTjo7mOUStjsKC4pOpQbqyi7RrhN7udi9RwhKkMHpvLbHG9Sr" crossorigin="anonymous">
+
+  <!-- <script src="./lib/lax.min.js"></script> -->
+  <script src="../src/lax.js"></script>
+
+  <script type="text/javascript">
+    window.onload = function() {
+      document.getElementById("main").classList.add("loaded")
+
+      lax.setup({
+        breakpoints: { xs: 0, s: 576, m: 768, l: 992  }
+      })
+
+      const update = () => {
+        lax.update(window.scrollY)
+        window.requestAnimationFrame(update)
+      }
+
+      window.requestAnimationFrame(update)
+      
+      let w = window.innerWidth
+      window.addEventListener("resize", function() {
+        if(w !== window.innerWidth) {
+          lax.populateElements()
+        }
+      });
+    }
+
+  </script>
+
+  <style>
+    body,html {
+      margin:0;
+      padding:0;
+      color: #F3F4F5;
+      background: #191818;
+      overflow-x: hidden;
+      height: 500vh;
+      font-family: 'Montserrat', sans-serif;
+    }
+
+    #main {
+      opacity: 0;
+      transition: opacity 200ms;
+    }
+
+    #main.loaded {
+      opacity: 1;
+    }
+   
+    #header {
+      display: flex;
+      flex-direction: column;
+      align-items: center;
+      justify-content: center;
+      width: 100vw;
+      z-index: 2;
+      height: 100vh;
+    }
+
+    #header img {
+      width: 78pt;
+      margin-top: 12pt;
+      position: fixed;
+      transform: scale(0.5)
+    }
+
+  </style>
+</head>
+
+<body>
+  <div id="main">
+    <div id="header" class="section">
+      <img src="./img/a.png" 
+        class="lax"
+        data-lax-scale="0 1, vh 5"
+        data-lax-scale_s="0 1, vh 1"
+        data-lax-preset_s="fadeInOut"
+        data-lax-scale_xs="0 1, vh 0"
+      />
+    </div>
+  </div>
+
+</body>
--- a/docs/demo.html
+++ b/docs/demo.html
@@ -0,0 +1,158 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta name="viewport" content="width=device-width, initial-scale=0.5, maximum-scale=0.5, minimum-scale=0.5">
+  <link href="https://fonts.googleapis.com/css?family=Montserrat:300,600,800" rel="stylesheet">
+
+
+  <style>
+    body,html {
+      margin:0;
+      padding:0;
+      color: rgb(10,10,10);
+      background: white;
+      overflow-x: hidden;
+      height: 10000vh;
+      font-family: "Raleway", "HelveticaNeue", sans-serif;
+    }
+
+    h4 {
+      font-size: 2rem;
+      line-height: 1.35;
+      letter-spacing: -.08rem;
+    }
+
+    #main {
+      opacity: 0;
+      transition: opacity 200ms;
+    }
+
+    #main.loaded {
+      opacity: 1;
+    }
+
+    #background {
+      position: fixed;
+    }
+
+    .leaf1 {
+      width: 200pt;
+      height: 80pt;
+      position: absolute;
+      background: url('img/leaf1.svg') no-repeat;
+      mix-blend-mode: multiply;
+      opacity: 0.7;
+    }
+
+    .leaf {
+      width: 200pt;
+      height: 100pt;
+      position: absolute;
+      mix-blend-mode: multiply;
+      opacity: 0.7;
+    }
+
+    #center {
+      display: flex;
+      flex-direction: column;
+      align-items: center;
+      width: 100vw;
+    }
+
+    #avatar {
+      width: 150pt;
+      height: 150pt;
+      background: gray;
+      border-radius: 75pt;
+      margin-top: 50pt
+    }
+
+    #bio { 
+      width: 400pt;
+      position: fixed;
+    }
+
+    #bio p {
+      font-size: 14pt;
+      line-height: 26pt;
+      font-weight: 100;
+    }
+
+    .github-corner {
+      z-index: 1000;
+      display: block;
+      position: fixed;
+      top: 0;
+      right: 0;
+      transform: scale(1.2);
+    }
+
+  </style>
+
+  <!-- <script src="./lib/lax.min.js"></script> -->
+  <script src="../src/lax.js"></script>
+
+  <script type="text/javascript">
+
+    window.onload = function() {
+      document.getElementById("main").classList.add("loaded")
+
+      lax.setup()
+
+      const update = () => {
+        lax.update(window.scrollY)
+        window.requestAnimationFrame(update)
+      }
+
+      window.requestAnimationFrame(update)
+    }
+  </script>
+
+</head>
+
+
+<body>
+  <div id="main">
+    <div id="background">
+      <div 
+        class="lax leaf"
+        style="transform: scale(1.5); background: url('img/leaf1.svg') no-repeat;"
+        data-lax-rotate= "0 -20, 900 20, 2000 -20 | loop=2000 offset=200"
+        data-lax-translate-x= "0 110, 800 -100, 900 -110, 1900 100, 2000 110 | loop=2000 offset=200"
+        data-lax-translate-y= "0 -elh, (vh*10) (vh+elh) | loop=(vh*10) offset=1000 speed=1"
+      ></div>
+
+      <div 
+        class="lax leaf"
+        style="transform: scale(2); background: url('img/leaf2.svg') no-repeat;"
+        data-lax-rotate= "0 -20, 900 20, 2000 -20 | loop=2000 offset=500 speed=1.5"
+        data-lax-translate-x= "0 110, 800 -100, 900 -110, 1900 100, 2000 110 | loop=2000 offset=500 speed=1.5"
+        data-lax-translate-y= "0 -elh, (vh*10) (vh+elh) | loop=(vh*10) offset=1000 speed=1"
+      ></div>
+
+      <div 
+        class="lax leaf"
+        style="transform: scale(1.2); background: url('img/leaf3.svg') no-repeat;"
+        data-lax-rotate= "0 -20, 900 20, 2000 -20 | loop=2000 offset=1000"
+        data-lax-translate-x= "0 110, 800 -100, 900 -110, 1900 100, 2000 110 | loop=2000 offset=1000"
+        data-lax-translate-y= "0 -elh, (vh*10) (vh+elh) | loop=(vh*10) offset=400 speed=1"
+      ></div>
+    </div>
+
+    <div id="center">
+      <div 
+        id="avatar"
+        class="lax"
+      /></div>
+
+      <div id="bio">
+        <h4>Scroll Dowwwnn...</h4>
+      </div>
+    </div>
+
+  </div>
+
+    <a href="https://github.com/alexfoxy/laxxx" class="github-corner" aria-label="View source on GitHub"><svg width="80" height="80" viewBox="0 0 250 250" style="fill:#000000; color:#ffffff; position: absolute; top: 0; border: 0; right: 0;" aria-hidden="true"><path d="M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z"></path><path d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2" fill="currentColor" style="transform-origin: 130px 106px;" class="octo-arm"></path><path d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z" fill="currentColor" class="octo-body"></path></svg></a><style>.github-corner:hover .octo-arm{animation:octocat-wave 560ms ease-in-out}@keyframes octocat-wave{0%,100%{transform:rotate(0)}20%,60%{transform:rotate(-25deg)}40%,80%{transform:rotate(10deg)}}@media (max-width:500px){.github-corner:hover .octo-arm{animation:none}.github-corner .octo-arm{animation:octocat-wave 560ms ease-in-out}}</style>
+
+
+</body>
--- a/docs/img/a.png
+++ b/docs/img/a.png
--- a/docs/img/a.svg
+++ b/docs/img/a.svg
@@ -1 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 52.22 46.64"><defs><style>.cls-1{fill:#f3f4f5;}</style></defs><title>a</title><g id="Layer_2" data-name="Layer 2"><g id="Layer_1-2" data-name="Layer 1"><path class="cls-1" d="M1,32.73H6.43C2.55,29.23,0,24.41,0,17.41,0,7.85,5.49,0,15.52,0h.18C26.77,0,31.88,8.42,31.88,20.43a36.09,36.09,0,0,1-2.08,12.4h.85c6,0,9.27-3.69,9.27-10.88A37.31,37.31,0,0,0,37.18,8l11-3.6A44.74,44.74,0,0,1,52.22,24c0,15.7-8.13,22.61-21.85,22.61H1ZM21.38,33a22.24,22.24,0,0,0,1.89-9.18c0-6.15-2.46-9.93-7-9.93h-.19c-3.88,0-6.15,3.21-6.15,7.85,0,6.72,3.69,11.26,8.9,11.26Z"/></g></g></svg>
--- a/docs/img/bart.png
+++ b/docs/img/bart.png
--- a/docs/img/bball.png
+++ b/docs/img/bball.png
--- a/docs/img/bowser-sprite.png
+++ b/docs/img/bowser-sprite.png
--- a/docs/img/button-bg.jpg
+++ b/docs/img/button-bg.jpg
--- a/docs/img/l.png
+++ b/docs/img/l.png
--- a/docs/img/l.svg
+++ b/docs/img/l.svg
@@ -1 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 69.06 14.38"><defs><style>.cls-1{fill:#f3f4f5;}</style></defs><title>l</title><g id="Layer_2" data-name="Layer 2"><g id="Layer_1-2" data-name="Layer 1"><path class="cls-1" d="M0,0H69.06V14.38H0Z"/></g></g></svg>
--- a/docs/img/leaf1.svg
+++ b/docs/img/leaf1.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 155.56 54.07"><defs><style>.cls-1{fill:url(#linear-gradient);}</style><linearGradient id="linear-gradient" x1="17.69" y1="36.08" x2="165.43" y2="35.97" gradientTransform="translate(-20.45 21.43) rotate(-18.21)" gradientUnits="userSpaceOnUse"><stop offset="0" stop-color="#c135d4"/><stop offset="1" stop-color="#6c56e3"/></linearGradient></defs><title>leaf1</title><g id="Layer_2" data-name="Layer 2"><g id="Layer_1-2" data-name="Layer 1"><path class="cls-1" d="M155.56,27c-17.91,16.44-46.08,27-77.77,27S17.91,43.47,0,27C17.91,10.59,46.09,0,77.79,0S137.65,10.59,155.56,27Z"/></g></g></svg>
--- a/docs/img/leaf2.svg
+++ b/docs/img/leaf2.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 155.56 54.07"><defs><style>.cls-1{fill:url(#linear-gradient);}</style><linearGradient id="linear-gradient" x1="-18.84" y1="30.22" x2="128.9" y2="30.11" gradientTransform="translate(16.08 15.58) rotate(-18.21)" gradientUnits="userSpaceOnUse"><stop offset="0" stop-color="#d4b43d"/><stop offset="1" stop-color="#ff309e"/></linearGradient></defs><title>leaf2</title><g id="Layer_2" data-name="Layer 2"><g id="Layer_1-2" data-name="Layer 1"><path class="cls-1" d="M155.56,27c-17.91,16.44-46.08,27-77.77,27S17.91,43.47,0,27C17.91,10.59,46.09,0,77.79,0S137.65,10.59,155.56,27Z"/></g></g></svg>
--- a/docs/img/leaf3.svg
+++ b/docs/img/leaf3.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 155.56 54.07"><defs><style>.cls-1{fill:url(#linear-gradient);}</style><linearGradient id="linear-gradient" x1="-0.57" y1="33.15" x2="147.16" y2="33.04" gradientTransform="translate(-2.19 18.5) rotate(-18.21)" gradientUnits="userSpaceOnUse"><stop offset="0" stop-color="#008ad4"/><stop offset="1" stop-color="#57ffb6"/></linearGradient></defs><title>leaf3</title><g id="Layer_2" data-name="Layer 2"><g id="Layer_1-2" data-name="Layer 1"><path class="cls-1" d="M155.56,27c-17.91,16.44-46.08,27-77.77,27S17.91,43.47,0,27C17.91,10.59,46.09,0,77.79,0S137.65,10.59,155.56,27Z"/></g></g></svg>
--- a/docs/img/leaf4.svg
+++ b/docs/img/leaf4.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 155.56 54.07"><defs><style>.cls-1{fill:url(#linear-gradient);}</style><linearGradient id="linear-gradient" x1="-17.27" y1="74.53" x2="130.46" y2="74.42" gradientTransform="translate(0.75 -26.02) rotate(-18.21)" gradientUnits="userSpaceOnUse"><stop offset="0" stop-color="#393fe3"/><stop offset="1" stop-color="#16d7de"/></linearGradient></defs><title>leaf4</title><g id="Layer_2" data-name="Layer 2"><g id="Layer_1-2" data-name="Layer 1"><path class="cls-1" d="M155.56,27c-17.91,16.44-46.08,27-77.77,27S17.91,43.47,0,27C17.91,10.59,46.09,0,77.79,0S137.65,10.59,155.56,27Z"/></g></g></svg>
--- a/docs/img/leaf5.svg
+++ b/docs/img/leaf5.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 155.56 54.07"><defs><style>.cls-1{fill:url(#linear-gradient);}</style><linearGradient id="linear-gradient" x1="0.99" y1="77.45" x2="148.73" y2="77.34" gradientTransform="translate(-17.52 -23.09) rotate(-18.21)" gradientUnits="userSpaceOnUse"><stop offset="0" stop-color="#cce371"/><stop offset="1" stop-color="#37e310"/></linearGradient></defs><title>leaf5</title><g id="Layer_2" data-name="Layer 2"><g id="Layer_1-2" data-name="Layer 1"><path class="cls-1" d="M155.56,27c-17.91,16.44-46.08,27-77.77,27S17.91,43.47,0,27C17.91,10.59,46.09,0,77.79,0S137.65,10.59,155.56,27Z"/></g></g></svg>
--- a/docs/img/mario-foreground.png
+++ b/docs/img/mario-foreground.png
--- a/docs/img/mario-logo.png
+++ b/docs/img/mario-logo.png
--- a/docs/img/mario-scrolldown.png
+++ b/docs/img/mario-scrolldown.png
--- a/docs/img/mario-sprite.png
+++ b/docs/img/mario-sprite.png
--- a/docs/img/mario-stars.gif
+++ b/docs/img/mario-stars.gif
--- a/docs/img/nyan.png
+++ b/docs/img/nyan.png
--- a/docs/img/x.png
+++ b/docs/img/x.png
--- a/docs/img/x.svg
+++ b/docs/img/x.svg
@@ -1 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 50.71 50.9"><defs><style>.cls-1{fill:#f3f4f5;}</style></defs><title>x</title><g id="Layer_2" data-name="Layer 2"><g id="Layer_1-2" data-name="Layer 1"><path class="cls-1" d="M0,35.48,15.8,25.26,0,15V0L25.73,17.79,50.71.66V16.08L36,25.54,50.71,35.1v15L26,33,0,50.9Z"/></g></g></svg>
--- a/docs/index.html
+++ b/docs/index.html
@@ -9,17 +9,26 @@
  <script src="./lib/lax.min.js"></script>
  <!-- <script src="../src/lax.js"></script> -->

+
  <script type="text/javascript">
    window.onload = function() {
      document.getElementById("main").classList.add("loaded")

      lax.setup()
-        
-      document.addEventListener('scroll', function(x) {
-        lax.update(window.scrollY)
-      }, false)

-      lax.update(window.scrollY)
+      const update = () => {
+        lax.update(window.scrollY)
+        window.requestAnimationFrame(update)
+      }
+
+      window.requestAnimationFrame(update)
+
+      let w = window.innerWidth
+      window.addEventListener("resize", function() {
+        if(w !== window.innerWidth) {
+          lax.updateElements()
+        }
+      });
    }
  </script>

@@ -48,8 +57,8 @@
      align-items: center;
      justify-content: center;
      width: 100vw;
-      margin-top: 20vh;
      z-index: 2;
+      height: 100vh;
    }

    .bg {
@@ -61,12 +70,12 @@
    }

    #header img {
-      width: 14vh;
-      margin-top: 2vh;
+      width: 78pt;
+      margin-top: 12pt;
    }

    #header h2 {
-      margin-top: 12vh;
+      margin-top: 60pt;
      font-size: 24pt;
      font-weight: 600;
      text-align: center;
@@ -176,10 +185,12 @@
    }

    .button {
-      padding: 10pt 20pt; 
-      background: #35D5E5;
+      padding: 10pt 50pt; 
+      background: url(img/button-bg.jpg);
+      background-size: 100pt;
      border-radius: 10pt;
      font-weight: 600;
+      color: black !important;
    }

    a {
@@ -187,34 +198,44 @@
    }

    a:visited {
-      color: white !important;
+      color: black !important;
    }

    .button:hover {
      background: white;
-      color: #35D5E5 !important;
+      color: black !important;
      cursor: pointer;
    }

+    .github-corner {
+      z-index: 1000;
+      display: block;
+      position: absolute;
+      top: 0;
+      right: 0;
+      transform: scale(1.2);
+    }
+
  </style>
 </head>


 <body>
-  <div id="main">
-    <div id="header" class="section" data-lax-opacity="0 1, (0.8*vh) 0">
-      <img src="./img/l.svg" style="width: 19vh; margin-left: 5vh;" data-lax-translate-x="0 0, vh 200" />
-      <img src="./img/a.svg" data-lax-translate-x="0 0, vh -200" />
-      <img src="./img/x.svg" />
-      <img src="./img/x.svg" style="margin-top: -14vh" data-lax-translate-y="0 0, vh 200" />
-      <img src="./img/x.svg" style="margin-top: -14vh" data-lax-translate-y="0 0, vh 400" />
-      <img src="./img/x.svg" style="margin-top: -14vh" data-lax-translate-y="0 0, vh 600" />
-      <img src="./img/x.svg" style="margin-top: -14vh" data-lax-translate-y="0 0, vh 800" />
-      <img src="./img/x.svg" style="margin-top: -14vh" data-lax-translate-y="0 0, vh 1000" />
-      <h2 data-lax-scale="0 1, vh 0.2" data-lax-translate-y="0 0, vh 1200" data-lax-opacity="0 1, (vh*0.5) 0">awesum scroll effects</h2>

-      <h4 data-lax-opacity="0 1, (vh*0.05) 0">scroll down</h4>
-      <i class="fas fa-chevron-down" 
+  <div id="main">
+    <div id="header" class="section">
+      <img src="./img/l.png" class="lax" style="width: 103pt; margin-left: 26pt; margin-bottom: -4pt;" data-lax-translate-x="0 0, vh 200" data-lax-optimize=true />
+      <img src="./img/a.png" class="lax" data-lax-translate-x="0 0, vh -200" data-lax-optimize=true />
+      <img src="./img/x.png" class="lax" data-lax-opacity="0 1, (0.8*vh) 0" />
+      <img src="./img/x.png" class="lax" style="margin-top: -79pt" data-lax-translate-y="0 0, vh 200" data-lax-opacity="0 1, (0.8*vh) 0" />
+      <img class="lax" src="./img/x.png" style="margin-top: -79pt" data-lax-translate-y="0 0, vh 400" data-lax-opacity="0 1, (0.8*vh) 0" />
+      <img class="lax" src="./img/x.png" style="margin-top: -79pt" data-lax-translate-y="0 0, vh 600" data-lax-opacity="0 1, (0.8*vh) 0" />
+      <img class="lax" src="./img/x.png" style="margin-top: -79pt" data-lax-translate-y="0 0, vh 800" data-lax-opacity="0 1, (0.8*vh) 0" />
+      <img class="lax" src="./img/x.png" style="margin-top: -79pt" data-lax-translate-y="0 0, vh 1000" data-lax-opacity="0 1, (0.8*vh) 0" />
+      <h2 class="lax" data-lax-scale="0 1, vh 0.2" data-lax-translate-y="0 0, vh 1200" data-lax-opacity="0 1, (vh*0.5) 0">awesum scroll effects</h2>
+
+      <h4 class="lax" data-lax-opacity="0 1, (vh*0.05) 0">scroll down</h4>
+      <i class="lax fas fa-chevron-down" 
        data-lax-opacity="0 1, (vh*0.1) 0" 
        data-lax-translate-y="0 0, 200 100">
      </i>
@@ -223,131 +244,135 @@

    <div id="section1" class="section">
      <div class="left">
-        <div class="bubble a"
+        <div class="lax bubble a"
          style="background: #EDD943"
          data-lax-preset="lazy-250"
        ></div>

-        <div class="bubble c"
+        <div class="lax bubble c"
          style="background: #ED2471; margin-left: 80pt"
          data-lax-preset="lazy-100"
        ></div>

-        <div class="bubble b"
+        <div class="lax bubble b"
          style="background: #35D5E5; margin-left: 160pt"
          data-lax-preset="lazy-300"
        ></div>

-        <h3 data-lax-preset="driftRight" class="chunkyText" style="color: #35D5E5;">oooh!</h3>
+        <h3 data-lax-preset="driftRight" data-lax-optimize=true class="lax chunkyText" style="color: #35D5E5;">oooh!</h3>
      </div>

      <div class="right">
-          <div class="bubble a"
+          <div class="lax bubble a"
            style="background: #35D5E5; margin-left: 120pt"
            data-lax-preset="lazy-200"
          ></div>

-          <div class="bubble c"
+          <div class="lax bubble c"
            style="background: #EDD943; margin-left: -20pt"
            data-lax-preset="lazy-150"
          ></div>

-          <div class="bubble b"
+          <div class="lax bubble b"
            style="background: #ED2471; margin-left: 20pt; margin-top: 200pt"
            data-lax-preset="lazy-350"
          ></div>
-        <h3 data-lax-preset="driftLeft" class="chunkyText" style="color: #ED2471; margin-top: 200pt;">aaah!</h3>
+        <h3 data-lax-optimize=true data-lax-preset="driftLeft" class="lax chunkyText" style="color: #ED2471; margin-top: 200pt;">aaah!</h3>
      </div>

-      <h3 data-lax-preset="crazy zoomInOut" class="crazyText">sooo crazy</h3>
+      <h3 data-lax-preset="crazy zoomInOut" class="lax crazyText" data-lax-optimize=true>sooo crazy</h3>
    </div>

    <div id="section2" class="section">
-      <div class="blockContainer" data-lax-preset="leftToRight-1.1 fadeInOut">
-        <div class="block"
+      <div class="lax blockContainer" data-lax-preset="leftToRight-1.1 fadeInOut">
+        <div class="lax block"
          style="background: #35D5E5;"
          data-lax-preset="spin"
        ></div>
      </div>

-      <div class="blockContainer" data-lax-preset="leftToRight-1.2 fadeInOut">
-        <div class="block"
+      <div class="lax blockContainer" data-lax-preset="leftToRight-1.2 fadeInOut">
+        <div class="lax block"
          style="background: #EDD943; margin-top: -50pt; margin-left: -50pt; width: 40pt; height: 40pt;"
          data-lax-preset="spinRev-500"
        ></div>
      </div>

-      <div class="blockContainer" data-lax-preset="leftToRight-1.4 fadeInOut">
-        <div class="block"
+      <div class="lax blockContainer" data-lax-preset="leftToRight-1.4 fadeInOut">
+        <div class="lax block"
          style="background: #ED2471; margin-top: -90pt; margin-left: -0pt;"
          data-lax-preset="spin-500"
        ></div>
      </div>

-      <div class="blockContainer" data-lax-preset="leftToRight-1.5 fadeInOut">
-        <div class="block"
+      <div class="lax blockContainer" data-lax-preset="leftToRight-1.5 fadeInOut">
+        <div class="lax block"
          style="background: #EDD943; margin-top: 70pt; margin-left: -150pt; width: 40pt; height: 40pt;"
          data-lax-preset="spinRev-500"
        ></div>
      </div>

-      <div class="blockContainer" data-lax-preset="leftToRight-1.3 fadeInOut">
-        <div class="block"
+      <div class="lax blockContainer" data-lax-preset="leftToRight-1.3 fadeInOut">
+        <div class="lax block"
          style="background: #EDD943; margin-top: 100pt; margin-left: -60pt; width: 25pt; height: 25pt;"
          data-lax-preset="spin-500"
        ></div>
      </div>

-      <div class="blockContainer" data-lax-preset="leftToRight-1.05 fadeInOut">
-        <div class="block"
+      <div class="lax blockContainer" data-lax-preset="leftToRight-1.05 fadeInOut">
+        <div class="lax block"
          style="background: #ED2471; margin-top: -30pt; margin-left: -70pt;"
          data-lax-preset="spin"
        ></div>
      </div>

-      <h3 data-lax-preset="leftToRight-0.8 fadeInOut" class="chunkyText" style="
+      <h3 data-lax-preset="leftToRight-0.8 speedy" data-lax-optimize=true class="lax chunkyText" style="
        color: #white; position: absolute; margin-top: -20pt; margin-left: -100pt">
        wheee!
      </h3>

-      <div class="blockContainer" data-lax-preset="leftToRight-1.15 fadeInOut">
-        <div class="block"
+      <div class="lax blockContainer" data-lax-preset="leftToRight-1.15 fadeInOut">
+        <div class="lax block"
          style="background: #35D5E5; margin-top: -70pt; margin-left: -20pt; width: 40pt; height: 40pt;"
          data-lax-preset="spinRev-500"
        ></div>
      </div>

-      <div class="blockContainer" data-lax-preset="leftToRight-1.45 fadeInOut">
-        <div class="block"
+      <div class="lax blockContainer" data-lax-preset="leftToRight-1.45 fadeInOut">
+        <div class="lax block"
          style="background: #ED2471; margin-top: -50pt; margin-left: -50pt; width: 25pt; height: 25pt;"
          data-lax-preset="spin-500"
        ></div>
      </div>

-      <div class="blockContainer" data-lax-preset="leftToRight-1.5 fadeInOut">
-        <div class="block"
+      <div class="lax blockContainer" data-lax-preset="leftToRight-1.5 fadeInOut">
+        <div class="lax block"
          style="background: #35D5E5; margin-top: 30pt; margin-left: -20pt;"
          data-lax-preset="spinRev-500"
        ></div>
      </div>

-      <div class="blockContainer" data-lax-preset="leftToRight-1.25 fadeInOut">
-        <div class="block"
+      <div class="lax blockContainer" data-lax-preset="leftToRight-1.25 fadeInOut">
+        <div class="lax block"
          style="background: #ED2471; margin-top: 80pt; margin-left: -10pt;"
          data-lax-preset="spin-500"
        ></div>
      </div>
    </div>

-    <div id="section3" class="section">
-      <p data-lax-preset="linger">
+    <div id="section3" class="lax section">
+      <p class="lax" data-lax-preset="linger" data-lax-optimize=true>
        Harness the power of scrolling and make your websites come alive!
      </p>
-      <a class="button" data-lax-preset="linger" href="https://github.com/alexfoxy/laxxx">
+      <a class="lax button" data-lax-preset="linger" data-lax-optimize=true data-lax-bg-pos-x="0 0, 3000 1000" href="https://github.com/alexfoxy/laxxx">
        Get lax.js
      </a>
    </div>

+
+
  </div>

+  <a href="https://github.com/alexfoxy/laxxx" class="github-corner" aria-label="View source on GitHub"><svg width="80" height="80" viewBox="0 0 250 250" style="fill:#fff; color:#151513; position: absolute; top: 0; border: 0; right: 0;" aria-hidden="true"><path d="M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z"></path><path d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2" fill="currentColor" style="transform-origin: 130px 106px;" class="octo-arm"></path><path d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z" fill="currentColor" class="octo-body"></path></svg></a><style>.github-corner:hover .octo-arm{animation:octocat-wave 560ms ease-in-out}@keyframes octocat-wave{0%,100%{transform:rotate(0)}20%,60%{transform:rotate(-25deg)}40%,80%{transform:rotate(10deg)}}@media (max-width:500px){.github-corner:hover .octo-arm{animation:none}.github-corner .octo-arm{animation:octocat-wave 560ms ease-in-out}}</style>
+
 </body>
--- a/docs/lib/lax.min.js
+++ b/docs/lib/lax.min.js
--- a/docs/sprite.html
+++ b/docs/sprite.html
@@ -0,0 +1,206 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta name="viewport" content="width=device-width, initial-scale=0.5, maximum-scale=0.5, minimum-scale=0.5">
+
+
+  <style>
+    body,html {
+      margin:0;
+      padding:0;
+      color: #F3F4F5;
+      background: #3c2d7f;
+      overflow-x: hidden;
+      height: 10000vh;
+      font-family: 'Montserrat', sans-serif;
+    }
+
+    #main {
+      opacity: 0;
+      transition: opacity 200ms;
+    }
+
+    #main.loaded {
+      opacity: 1;
+    }
+
+    #mario {
+      width: 256px;
+      height: 256px;
+      /*left: 0;*/
+      position: fixed;
+      top: calc(70vh - 256px)
+    }
+
+    #bowser {
+      width: 524px;
+      height: 350px;
+      /*left: 100vw;*/
+      position: fixed;
+      top: calc(70vh - 330px)
+    }
+
+    #stars {
+      width: 100vw;
+      height: 70vh;
+      background: url("img/mario-stars.gif");
+      background-size: 800px;
+      position: fixed;
+      opacity: 0.7;
+      top: 0;
+    }
+
+    #foreground {
+      width: 100vw;
+      height: 30vh;
+      background: url("img/mario-foreground.png");
+      background-size: 15vh;
+      position: fixed;
+      top: 70vh;
+    }
+
+    #nyan {
+      width: 300px;
+      height: 119px;
+      position: fixed;
+      top: 20vh;
+      left: 0;
+    }
+
+    #logo {
+      width: 300pt;
+      height: 100pt;
+      background: url(img/mario-logo.png) no-repeat center top;
+      background-size: contain;
+      position: fixed;
+      top: 10vh;
+      left: calc(50vw - 150pt);
+      z-index: 200;
+    }
+
+    #scrolltext {
+      width: 300pt;
+      height: 50pt;
+      background: url(img/mario-scrolldown.png) no-repeat center top;
+      background-size: contain;
+      position: fixed;
+      top: 83vh;
+      left: calc(50vw - 150pt);
+    }
+
+    #planet1 {
+      width: 30vw;
+      height: 30vw;
+      position: fixed;
+      left: 100vw;
+      bottom: 29vh;
+    }
+
+    #planet2 {
+      width: 20vw;
+      height: 20vw;
+      top: 10vh;
+      left: 30pt;
+      position: fixed;
+    }
+
+    .github-corner {
+      z-index: 1000;
+      display: block;
+      position: fixed;
+      top: 0;
+      right: 0;
+      transform: scale(1.2);
+    }
+
+  </style>
+
+  <script src="./lib/lax.min.js"></script>
+  <!-- <script src="../src/lax.js"></script> -->
+
+  <script type="text/javascript">
+    window.onload = function() {
+      document.getElementById("main").classList.add("loaded")
+
+      lax.setup()
+
+      const update = () => {
+        lax.update(window.scrollY)
+        window.requestAnimationFrame(update)
+      }
+
+      window.requestAnimationFrame(update)
+    }
+  </script>
+
+</head>
+
+
+<body>
+  <div id="main">
+    <div id="header" class="section">
+
+      <div 
+        id="stars"
+        class="lax"
+        data-lax-bg-pos-x="0 0, 10000 -800 | loop=10000"
+      ></div>
+
+      <div 
+        id="planet1"
+        class="lax"
+        data-lax-translate-x="0 0, 5000 (-vw-elw)"
+        data-lax-sprite-data="382,382,15,5,10"
+        data-lax-sprite-image="./img/bart.png"
+      ></div>
+
+      <div 
+        id="foreground"
+        class="lax"
+        data-lax-bg-pos-x="0 0, 7000 (-15*vh) | loop=7000"
+      ></div>
+
+      <div 
+        id="logo"
+      ></div>
+
+      <div 
+        id="scrolltext"
+        data-lax-translate-y="0 0, 360 350"
+        class="lax"
+      ></div>
+
+      <div 
+        id="nyan"
+        data-lax-sprite-data="300,119,12,4,10"
+        data-lax-translate-x="0 vw, 600 -elw | loop=600"
+        data-lax-sprite-image="./img/nyan.png"        
+        class="lax"
+      ></div>
+
+      <div 
+        id="mario"
+        class="lax"
+        data-lax-translate-x="0 -elw, 720 (vw+elw) | loop=720"
+        data-lax-translate-y="0 0, 240 0, 300 -500, 420 0, 720 0 | loop=720"
+        data-lax-sprite-data="256,256,12,4,5"
+        data-lax-sprite-image="./img/mario-sprite.png"
+      ></div>
+
+      <div 
+        id="bowser"
+        class="lax"
+        data-lax-translate-x="0 vw, 720 -elw | loop=720"
+        data-lax-sprite-data="524,350,8,4,10"
+        data-lax-sprite-image="./img/bowser-sprite.png"
+      ></div>
+
+
+    </div>
+
+  </div>
+
+    <a href="https://github.com/alexfoxy/laxxx" class="github-corner" aria-label="View source on GitHub"><svg width="80" height="80" viewBox="0 0 250 250" style="fill:#fff; color:#151513; position: absolute; top: 0; border: 0; right: 0;" aria-hidden="true"><path d="M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z"></path><path d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2" fill="currentColor" style="transform-origin: 130px 106px;" class="octo-arm"></path><path d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z" fill="currentColor" class="octo-body"></path></svg></a><style>.github-corner:hover .octo-arm{animation:octocat-wave 560ms ease-in-out}@keyframes octocat-wave{0%,100%{transform:rotate(0)}20%,60%{transform:rotate(-25deg)}40%,80%{transform:rotate(10deg)}}@media (max-width:500px){.github-corner:hover .octo-arm{animation:none}.github-corner .octo-arm{animation:octocat-wave 560ms ease-in-out}}</style>
+
+
+</body>
--- a/lib/lax.js
+++ b/lib/lax.js
@@ -1,5 +1,13 @@
 "use strict";

+function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest(); }
+
+function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }
+
+function _iterableToArrayLimit(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }
+
+function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
+
 //
 // lax v0.0.1 (Alex Fox)
 // Simple & light weight vanilla javascript plugin to create beautiful animations things when you scrolllll!!
@@ -19,7 +27,10 @@
    var lax = {
      elements: []
    };
-    var transforms = {
+    var lastY = 0;
+    var currentBreakpoint = 'default';
+    var breakpointsSeparator = "_";
+    var transformFns = {
      "data-lax-opacity": function dataLaxOpacity(style, v) {
        style.opacity = v;
      },
@@ -73,12 +84,21 @@
      },
      "data-lax-grayscale": function dataLaxGrayscale(style, v) {
        style.filter += "  grayscale(".concat(v, "%)");
+      },
+      "data-lax-bg-pos": function dataLaxBgPos(style, v) {
+        style.backgroundPosition = "".concat(v, "px ").concat(v, "px");
+      },
+      "data-lax-bg-pos-x": function dataLaxBgPosX(style, v) {
+        style.backgroundPositionX = "".concat(v, "px");
+      },
+      "data-lax-bg-pos-y": function dataLaxBgPosY(style, v) {
+        style.backgroundPositionY = "".concat(v, "px");
      }
    };
    var _crazy = "";

-    for (var i = 0; i < 100; i++) {
-      _crazy += " " + window.innerHeight * (i / 100) + " " + Math.random() * 360 + ", ";
+    for (var i = 0; i < 20; i++) {
+      _crazy += " " + i * 5 + " " + i * 47 % 360 + ", ";
    }

    lax.presets = {
@@ -107,7 +127,7 @@
      },
      crazy: function crazy(v) {
        return {
-          "data-lax-hue-rotate": _crazy
+          "data-lax-hue-rotate": "".concat(_crazy, " | loop=20")
        };
      },
      spin: function spin() {
@@ -208,128 +228,307 @@
        return {
          "data-lax-scale": "(vh*0.3) 1, -elh ".concat(v)
        };
+      },
+      speedy: function speedy() {
+        var v = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 30;
+        return {
+          "data-lax-skew-x": "(vh) ".concat(v, ", -elh ").concat(-v)
+        };
+      },
+      swing: function swing() {
+        var v = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 30;
+        return {
+          "data-lax-skew-y": "(vh) ".concat(v, ", -elh ").concat(-v)
+        };
      }
    };

-    lax.addPreset = function (name, o) {
-      lax.presets[name] = o;
+    lax.addPreset = function (p, o) {
+      lax.presets[p] = o;
    };

-    function intrp(table, v) {
+    function intrp(t, v) {
      var i = 0;

-      while (table[i][0] <= v && table[i + 1] !== undefined) {
+      while (t[i][0] <= v && t[i + 1] !== undefined) {
        i += 1;
      }

-      var x = table[i][0];
-      var prevX = table[i - 1] === undefined ? x : table[i - 1][0];
-      var y = table[i][1];
-      var prevY = table[i - 1] === undefined ? y : table[i - 1][1];
+      var x = t[i][0];
+      var prevX = t[i - 1] === undefined ? x : t[i - 1][0];
+      var y = t[i][1];
+      var prevY = t[i - 1] === undefined ? y : t[i - 1][1];
      var xPoint = Math.min(Math.max((v - prevX) / (x - prevX), 0), 1);
      var yPoint = xPoint * (y - prevY) + prevY;
      return yPoint;
    }

-    lax.setup = function (o) {
-      lax.populateObjects();
+    function fnOrVal(s) {
+      if (s[0] === "(") return eval(s);else return parseFloat(s);
+    }
+
+    lax.setup = function () {
+      var o = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
+      lax.breakpoints = o.breakpoints || {};
+      lax.selector = o.selector || '.lax';
+      lax.populateElements();
    };

-    lax.populateObjects = function () {
-      var selector = Object.keys(transforms).map(function (t) {
-        return "[".concat(t, "]");
-      }).join(",");
-      selector += ",[data-lax-preset]";
-      document.querySelectorAll(selector).forEach(function (el) {
-        var o = {
-          el: el,
-          transforms: []
-        };
-        var presetNames = el.attributes["data-lax-preset"] && el.attributes["data-lax-preset"].value;
+    lax.removeElement = function (el) {
+      var i = lax.elements.findIndex(function (o) {
+        return o.el = el;
+      });

-        if (presetNames) {
-          presetNames.split(" ").forEach(function (p) {
-            var bits = p.split("-");
-            var fn = lax.presets[bits[0]];
+      if (i > -1) {
+        lax.elements.splice(i, 1);
+      }
+    };

-            if (!fn) {
-              console.error("preset #{bits[0]} is not defined");
-            } else {
-              var d = fn(bits[1]);
+    lax.createLaxObject = function (el) {
+      var o = {
+        el: el,
+        originalStyle: {
+          transform: el.style.transform,
+          filter: el.style.filter
+        },
+        transforms: {}
+      };
+      return o;
+    };

-              for (var k in d) {
-                el.setAttribute(k, d[k]);
-              }
-            }
-          });
-          el.setAttribute("data-lax-anchor", "self");
-          el.attributes.removeNamedItem("data-lax-preset");
+    lax.calcTransforms = function (o) {
+      var el = o.el; //find presets in data attributes
+
+      var presets = [];
+
+      for (var _i = 0; _i < el.attributes.length; _i++) {
+        var a = el.attributes[_i];
+
+        if (a.name.indexOf("data-lax-preset") > -1) {
+          presets.push(a);
        }
+      } //unwrap presets into transformations

-        var optimise = !(el.attributes["data-lax-optimize"] && el.attributes["data-lax-optimize"].value == 'false');
-        if (optimise) el.style["-webkit-backface-visibility"] = "hidden";
-        if (el.attributes["data-lax-optimize"]) el.attributes.removeNamedItem("data-lax-optimize");

-        for (var i = 0; i < el.attributes.length; i++) {
-          var a = el.attributes[i];
-          var bits = a.name.split("-");
+      var _loop = function _loop(_i2) {
+        var a = presets[_i2];
+        var b = a.name.split(breakpointsSeparator);
+        var breakpoint = b[1] ? "".concat(breakpointsSeparator).concat(b[1]) : '';
+        a.value.split(" ").forEach(function (p) {
+          var bits = p.split("-");
+          var fn = lax.presets[bits[0]];

-          if (bits[1] === "lax") {
-            if (a.name === "data-lax-anchor") {
-              o["data-lax-anchor"] = a.value === "self" ? el : document.querySelector(a.value);
-              var rect = o["data-lax-anchor"].getBoundingClientRect();
-              o["data-lax-anchor-top"] = Math.floor(rect.top) + window.scrollY;
-            } else {
-              o.transforms[a.name] = a.value.replace(new RegExp('vw', 'g'), window.innerWidth).replace(new RegExp('vh', 'g'), window.innerHeight).replace(new RegExp('elh', 'g'), el.clientHeight).replace(new RegExp('elw', 'g'), el.clientWidth).replace(new RegExp('-vw', 'g'), -window.innerWidth).replace(new RegExp('-vh', 'g'), -window.innerHeight).replace(new RegExp('-elh', 'g'), -el.clientHeight).replace(new RegExp('-elw', 'g'), -el.clientWidth).replace(/\s+/g, " ").split(",").map(function (x) {
-                return x.trim().split(" ").map(function (y) {
-                  if (y[0] === "(") return eval(y);else return parseFloat(y);
+          if (!fn) {
+            console.log("lax error: preset ".concat(bits[0], " is not defined"));
+          } else {
+            var d = fn(bits[1]);
+
+            for (var k in d) {
+              el.setAttribute("".concat(k).concat(breakpoint), d[k]);
+            }
+          }
+        });
+        el.setAttribute("data-lax-anchor", "self");
+        el.attributes.removeNamedItem(a.name);
+      };
+
+      for (var _i2 = 0; _i2 < presets.length; _i2++) {
+        _loop(_i2);
+      } // use gpu
+
+
+      var useGpu = !(el.attributes["data-lax-use-gpu"] && el.attributes["data-lax-use-gpu"].value === 'false');
+
+      if (useGpu) {
+        el.style["backface-visibility"] = "hidden";
+        el.style["-webkit-backface-visibility"] = "hidden";
+      }
+
+      if (el.attributes["data-lax-use-gpu"]) el.attributes.removeNamedItem("data-lax-use-gpu"); // optmise off screen
+
+      o.optimise = false;
+
+      if (el.attributes["data-lax-optimize"] && el.attributes["data-lax-optimize"].value === 'true') {
+        o.optimise = true;
+        var bounds = el.getBoundingClientRect();
+        el.setAttribute("data-lax-opacity", "".concat(-bounds.height - 1, " 0, ").concat(-bounds.height, " 1, ").concat(window.innerHeight, " 1, ").concat(window.innerHeight + 1, " 0"));
+        el.attributes.removeNamedItem("data-lax-optimize");
+      } // build transform list
+
+
+      for (var _i3 = 0; _i3 < el.attributes.length; _i3++) {
+        var _a = el.attributes[_i3];
+        if (_a.name.indexOf("data-lax") < 0) continue;
+
+        var b = _a.name.split(breakpointsSeparator);
+
+        var bits = b[0].split("-");
+        var breakpoint = b[1] || "default";
+
+        if (bits[1] === "lax") {
+          if (_a.name === "data-lax-anchor") {
+            o["data-lax-anchor"] = _a.value === "self" ? el : document.querySelector(_a.value);
+            var rect = o["data-lax-anchor"].getBoundingClientRect();
+            o.anchorTop = Math.floor(rect.top) + window.scrollY;
+          } else {
+            (function () {
+              var tString = _a.value.replace(/vw/g, window.innerWidth).replace(/vh/g, window.innerHeight).replace(/elh/g, el.clientHeight).replace(/elw/g, el.clientWidth).replace(/\s+/g, " ");
+
+              var _tString$split = tString.split("|"),
+                  _tString$split2 = _slicedToArray(_tString$split, 2),
+                  arrString = _tString$split2[0],
+                  optionString = _tString$split2[1];
+
+              var options = {};
+
+              if (optionString) {
+                optionString.split(" ").forEach(function (o) {
+                  var _o$split = o.split("="),
+                      _o$split2 = _slicedToArray(_o$split, 2),
+                      key = _o$split2[0],
+                      val = _o$split2[1];
+
+                  options[key] = key && fnOrVal(val);
                });
+              }
+
+              var name = b[0];
+              var valueMap = arrString.split(",").map(function (x) {
+                return x.trim().split(" ").map(fnOrVal);
              }).sort(function (a, b) {
                return a[0] - b[0];
              });
-            }
+
+              if (!o.transforms[name]) {
+                o.transforms[name] = {};
+              }
+
+              o.transforms[name][breakpoint] = {
+                valueMap: valueMap,
+                options: options
+              };
+            })();
          }
        }
+      } // sprite sheet animation

-        lax.elements.push(o);
-      });
+
+      var spriteData = el.attributes["data-lax-sprite-data"] && el.attributes["data-lax-sprite-data"].value;
+
+      if (spriteData) {
+        o.spriteData = spriteData.split(",").map(function (x) {
+          return parseInt(x);
+        });
+        el.style.height = o.spriteData[1] + "px";
+        el.style.width = o.spriteData[0] + "px";
+        var spriteImage = el.attributes["data-lax-sprite-image"] && el.attributes["data-lax-sprite-image"].value;
+
+        if (spriteImage) {
+          el.style.backgroundImage = "url(".concat(spriteImage, ")");
+        }
+      }
+
+      return o;
    };

-    var lastScroll = 0;
+    lax.populateElements = function () {
+      lax.elements = [];
+      document.querySelectorAll(lax.selector).forEach(function (el) {
+        var o = lax.calcTransforms(lax.createLaxObject(el));
+        lax.elements.push(o);
+        lax.updateElement(o);
+      });
+      currentBreakpoint = lax.getCurrentBreakPoint();
+    };
+
+    lax.updateElements = function () {
+      lax.elements.forEach(function (o) {
+        lax.calcTransforms(o);
+        lax.updateElement(o);
+      });
+      currentBreakpoint = lax.getCurrentBreakPoint();
+    };
+
+    lax.getCurrentBreakPoint = function () {
+      var b = 'default';
+      var w = window.innerWidth;
+
+      for (var _i4 in lax.breakpoints) {
+        var px = parseFloat(lax.breakpoints[_i4]);
+
+        if (px <= w) {
+          b = _i4;
+        } else {
+          break;
+        }
+      }
+
+      return b;
+    };
+
+    lax.updateElement = function (o) {
+      var originalStyle = o.originalStyle,
+          anchorTop = o.anchorTop,
+          transforms = o.transforms,
+          spriteData = o.spriteData,
+          el = o.el;
+      var r = anchorTop ? anchorTop - lastY : lastY;
+      var style = {
+        transform: originalStyle.transform,
+        filter: originalStyle.filter
+      };
+
+      for (var _i5 in transforms) {
+        var transformData = transforms[_i5][currentBreakpoint] || transforms[_i5]["default"];
+
+        if (!transformData) {
+          // console.log(`lax error: there is no setting for key ${i} and screen size ${currentBreakpoint}. Try adding a default value!`)
+          continue;
+        }
+
+        var _r = r;
+        if (transformData.options.offset) _r = _r + transformData.options.offset;
+        if (transformData.options.speed) _r = _r * transformData.options.speed;
+        if (transformData.options.loop) _r = _r % transformData.options.loop;
+        var t = transformFns[_i5];
+        var v = intrp(transformData.valueMap, _r);
+
+        if (!t) {
+          // console.info(`lax: error ${i} is not supported`)
+          continue;
+        }
+
+        t(style, v);
+      }
+
+      if (spriteData) {
+        var _spriteData = _slicedToArray(spriteData, 5),
+            frameW = _spriteData[0],
+            frameH = _spriteData[1],
+            numFrames = _spriteData[2],
+            cols = _spriteData[3],
+            scrollStep = _spriteData[4];
+
+        var frameNo = Math.floor(lastY / scrollStep) % numFrames;
+        var framePosX = frameNo % cols;
+        var framePosY = Math.floor(frameNo / cols);
+        style.backgroundPosition = "-".concat(framePosX * frameW, "px -").concat(framePosY * frameH, "px");
+      }
+
+      if (style.opacity === 0) {
+        // if opacity 0 don't update
+        el.style.opacity = 0;
+      } else {
+        for (var k in style) {
+          el.style[k] = style[k];
+        }
+      }
+    };

    lax.update = function (y) {
-      var momentum = lastScroll - y;
-      lastScroll = y;
-      lax.elements.forEach(function (o) {
-        var transformString = "";
-        var r = o["data-lax-anchor-top"] ? o["data-lax-anchor-top"] - y : y;
-        var style = {
-          transform: "",
-          filter: ""
-        };
-
-        for (var i in o.transforms) {
-          var arr = o.transforms[i];
-          var t = transforms[i];
-          var v = intrp(arr, r);
-
-          if (!t) {
-            console.error("lax: " + i + " is not supported");
-            return;
-          }
-
-          t(style, v);
-        }
-
-        for (var k in style) {
-          if (style.opacity === 0) {
-            // if opacity 0 don't update
-            o.el.style.opacity = 0;
-          } else {
-            o.el.style[k] = style[k];
-          }
-        }
-      });
+      if (lastY === y) return;
+      lastY = y;
+      lax.elements.forEach(lax.updateElement);
    };

    return lax;
--- a/lib/lax.min.js
+++ b/lib/lax.min.js
--- a/lib/lax.min.js.gz
+++ b/lib/lax.min.js.gz
--- a/package.json
+++ b/package.json
@@ -1,8 +1,8 @@
 {
 	"name": "lax.js",
-	"version": "1.0.2",
+	"version": "1.2.1",
 	"scripts": {
-		"build": "babel src -d lib; uglifyjs lib/lax.js -o lib/lax.min.js -c -m; gzip < lib/lax.min.js > lib/lax.min.js.gz"
+		"build": "babel src -d lib; uglifyjs lib/lax.js -o lib/lax.min.js -c -m; gzip < lib/lax.min.js > lib/lax.min.js.gz;"
 	},
 	"devDependencies": {
 		"@babel/cli": "^7.2.3",
--- a/src/lax.js
+++ b/src/lax.js
@@ -13,38 +13,44 @@
 // without getting a written permission first.
 //

-(function() {
-  var lax = (function() {
-    var lax = {
+(() => {
+  const lax = (() => {
+    const lax = {
      elements: []
    }

-    const transforms = {
-      "data-lax-opacity": function(style, v) { style.opacity = v },
-      "data-lax-translate": function(style, v) { style.transform += ` translate(${v}px, ${v}px)` },
-      "data-lax-translate-x": function(style, v) { style.transform += ` translateX(${v}px)` },
-      "data-lax-translate-y": function(style, v) { style.transform += ` translateY(${v}px)` },
-      "data-lax-scale": function(style, v) { style.transform += ` scale(${v})` },
-      "data-lax-scale-x": function(style, v) { style.transform += ` scaleX(${v})` },
-      "data-lax-scale-y": function(style, v) { style.transform += ` scaleY(${v})` },
-      "data-lax-skew": function(style, v) { style.transform += ` skew(${v}deg, ${v}deg)` },
-      "data-lax-skew-x": function(style, v) { style.transform += ` skewX(${v}deg)` },
-      "data-lax-skew-y": function(style, v) { style.transform += ` skewY(${v}deg)` },
-      "data-lax-rotate": function(style, v) { style.transform += ` rotate(${v}deg)` },
+    let lastY = 0;
+    let currentBreakpoint = 'default'
+    const breakpointsSeparator = "_"

-      "data-lax-brightness": function(style, v) { style.filter += ` brightness(${v}%)` },
-      "data-lax-contrast": function(style, v) { style.filter += ` contrast(${v}%)` },
-      "data-lax-hue-rotate": function(style, v) { style.filter += ` hue-rotate(${v}deg)` },
-      "data-lax-blur": function(style, v) { style.filter += ` blur(${v}px)` },
-      "data-lax-invert": function(style, v) { style.filter += `  invert(${v}%)` },
-      "data-lax-saturate": function(style, v) { style.filter += `  saturate(${v}%)` },
-      "data-lax-grayscale": function(style, v) { style.filter += `  grayscale(${v}%)` },
+    const transformFns = {
+      "data-lax-opacity": (style, v) => { style.opacity = v },
+      "data-lax-translate": (style, v) => { style.transform += ` translate(${v}px, ${v}px)` },
+      "data-lax-translate-x": (style, v) => { style.transform += ` translateX(${v}px)` },
+      "data-lax-translate-y": (style, v) => { style.transform += ` translateY(${v}px)` },
+      "data-lax-scale": (style, v) => { style.transform += ` scale(${v})` },
+      "data-lax-scale-x": (style, v) => { style.transform += ` scaleX(${v})` },
+      "data-lax-scale-y": (style, v) => { style.transform += ` scaleY(${v})` },
+      "data-lax-skew": (style, v) => { style.transform += ` skew(${v}deg, ${v}deg)` },
+      "data-lax-skew-x": (style, v) => { style.transform += ` skewX(${v}deg)` },
+      "data-lax-skew-y": (style, v) => { style.transform += ` skewY(${v}deg)` },
+      "data-lax-rotate": (style, v) => { style.transform += ` rotate(${v}deg)` },
+      "data-lax-brightness": (style, v) => { style.filter += ` brightness(${v}%)` },
+      "data-lax-contrast": (style, v) => { style.filter += ` contrast(${v}%)` },
+      "data-lax-hue-rotate": (style, v) => { style.filter += ` hue-rotate(${v}deg)` },
+      "data-lax-blur": (style, v) => { style.filter += ` blur(${v}px)` },
+      "data-lax-invert": (style, v) => { style.filter += `  invert(${v}%)` },
+      "data-lax-saturate": (style, v) => { style.filter += `  saturate(${v}%)` },
+      "data-lax-grayscale": (style, v) => { style.filter += `  grayscale(${v}%)` },
+      "data-lax-bg-pos": (style, v) => { style.backgroundPosition = `${v}px ${v}px` },
+      "data-lax-bg-pos-x": (style, v) => { style.backgroundPositionX = `${v}px` },
+      "data-lax-bg-pos-y": (style, v) => { style.backgroundPositionY = `${v}px` }
    }

    let crazy = ""

-    for(var i=0;i<100;i++) {
-      crazy += " " + (window.innerHeight*(i/100)) + " " + (Math.random() * 360) + ", "
+    for(let i=0;i<20;i++) {
+      crazy += " " + i*5 + " " + (i*47)%360 + ", "
    }

    lax.presets = {
@@ -61,7 +67,7 @@
        return { "data-lax-translate-x": `vh ${v}, (vh*0.8) ${-v}, (vh*0.6) ${v}, (vh*0.4) ${-v}, (vh*0.2) ${v}, (vh*0) ${-v}, (-elh) ${v}` }
      },
      crazy: (v) => {
-        return { "data-lax-hue-rotate": crazy }
+        return { "data-lax-hue-rotate": `${crazy} | loop=20` }
      },
      spin: (v=360) => {
        return { "data-lax-rotate": `(vh) 0, (-elh) ${v}` }
@@ -114,138 +120,279 @@
      zoomOut: (v=0.2) => {
        return { "data-lax-scale": `(vh*0.3) 1, -elh ${v}` }
      },
+      speedy: (v=30) => {
+        return { "data-lax-skew-x": `(vh) ${v}, -elh ${-v}` }
+      },
+      swing: (v=30) => {
+        return { "data-lax-skew-y": `(vh) ${v}, -elh ${-v}` }
+      }
    }

-    lax.addPreset = (name, o) => {
-      lax.presets[name] = o
+    lax.addPreset = (p, o) => {
+      lax.presets[p] = o
    }

-    function intrp(table, v) {
-      var i = 0
+    function intrp(t, v) {
+      let i = 0

-      while(table[i][0] <= v && table[i+1] !== undefined) {
+      while(t[i][0] <= v && t[i+1] !== undefined) {
        i+=1
      }

-      var x = table[i][0]
-      var prevX = table[i-1] === undefined ? x : table[i-1][0]
+      const x = t[i][0]
+      const prevX = t[i-1] === undefined ? x : t[i-1][0]

-      var y = table[i][1]
-      var prevY = table[i-1] === undefined ? y : table[i-1][1]
+      const y = t[i][1]
+      const prevY = t[i-1] === undefined ? y : t[i-1][1]

-      var xPoint = Math.min(Math.max((v-prevX)/(x-prevX),0),1)
-      var yPoint = (xPoint*(y-prevY)) + prevY
+      const xPoint = Math.min(Math.max((v-prevX)/(x-prevX),0),1)
+      const yPoint = (xPoint*(y-prevY)) + prevY

      return yPoint
    }

-    lax.setup = function(o) {
-      lax.populateObjects()
+    function fnOrVal(s) {
+      if(s[0] === "(") return eval(s)
+      else return parseFloat(s)
    }

-    lax.populateObjects = function() {
-      var selector = Object.keys(transforms).map(t => `[${t}]`).join(",")
-      selector += ",[data-lax-preset]"
+    lax.setup = (o={}) => {
+      lax.breakpoints = o.breakpoints || {}
+      
+      lax.selector = o.selector || '.lax'
+      lax.populateElements()
+    }

-      document.querySelectorAll(selector).forEach(function(el) {
-        var o = {
-          el: el,
-          transforms: []
-        }
+    lax.removeElement = (el) => {
+      const i = lax.elements.findIndex(o => o.el = el)
+      if(i > -1) {
+        lax.elements.splice(i, 1)
+      }
+    }

-        var presetNames = el.attributes["data-lax-preset"] && el.attributes["data-lax-preset"].value
-        if(presetNames) {
-          presetNames.split(" ").forEach((p) => {
-            const bits = p.split("-")
-            const fn = lax.presets[bits[0]]
-            if(!fn) {
-              console.error(`preset #{bits[0]} is not defined`)
-            } else {
-              const d = fn(bits[1])
-              for(var k in d) {
-                el.setAttribute(k, d[k])
+    lax.createLaxObject = (el) => {
+      const o = {
+        el: el,
+        originalStyle: {
+          transform: el.style.transform,
+          filter: el.style.filter
+        },
+        transforms: {}
+      }
+
+      return o
+    }
+
+    lax.calcTransforms = (o) => {
+      const { el } = o
+
+      //find presets in data attributes
+      const presets = []
+      for(let i=0; i<el.attributes.length; i++) {
+          const a = el.attributes[i]
+          if(a.name.indexOf("data-lax-preset") > -1)  {
+            presets.push(a);
+          }
+      }
+
+      //unwrap presets into transformations
+      for(let i=0; i<presets.length; i++) {
+          const a = presets[i]
+          const b = a.name.split(breakpointsSeparator)
+          const breakpoint = b[1] ? `${breakpointsSeparator}${b[1]}` : ''
+          a.value.split(" ").forEach((p) => {
+              const bits = p.split("-")
+              const fn = lax.presets[bits[0]]
+              if(!fn) {
+                  console.log(`lax error: preset ${bits[0]} is not defined`)
+              } else {
+                  const d = fn(bits[1])
+                  for(let k in d) {
+                      el.setAttribute(`${k}${breakpoint}`, d[k])
+                  }
              }
-            }
          })

          el.setAttribute("data-lax-anchor", "self")
-          el.attributes.removeNamedItem("data-lax-preset")
-        }
+          el.attributes.removeNamedItem(a.name)

-        const optimise = !(el.attributes["data-lax-optimize"] && el.attributes["data-lax-optimize"].value == 'false')
-        if(optimise) el.style["-webkit-backface-visibility"] = "hidden"
-        if(el.attributes["data-lax-optimize"]) el.attributes.removeNamedItem("data-lax-optimize")
+      }

-        for(var i=0; i<el.attributes.length; i++) {
-          var a = el.attributes[i]
-          var bits = a.name.split("-")
-          if(bits[1] === "lax") {
-            if(a.name === "data-lax-anchor") {
-              o["data-lax-anchor"] = a.value === "self" ? el : document.querySelector(a.value)
-              const rect = o["data-lax-anchor"].getBoundingClientRect()
-              o["data-lax-anchor-top"] = Math.floor(rect.top) + window.scrollY
-            } else {
-              o.transforms[a.name] = a.value
-                .replace(new RegExp('vw', 'g'), window.innerWidth)
-                .replace(new RegExp('vh', 'g'), window.innerHeight)
-                .replace(new RegExp('elh', 'g'), el.clientHeight)
-                .replace(new RegExp('elw', 'g'), el.clientWidth)
-                .replace(new RegExp('-vw', 'g'), -window.innerWidth)
-                .replace(new RegExp('-vh', 'g'), -window.innerHeight)
-                .replace(new RegExp('-elh', 'g'), -el.clientHeight)
-                .replace(new RegExp('-elw', 'g'), -el.clientWidth).replace(/\s+/g," ")
-                .split(",").map((x) => { 
-                  return x.trim().split(" ").map(y => {
-                    if(y[0] === "(") return eval(y)
-                    else return parseFloat(y)
-                  })
-                }).sort((a,b) => {
-                  return a[0] - b[0]  
-                })
+      // use gpu
+      const useGpu = !(el.attributes["data-lax-use-gpu"] && el.attributes["data-lax-use-gpu"].value === 'false')
+      if(useGpu) {
+        el.style["backface-visibility"] = "hidden"
+        el.style["-webkit-backface-visibility"] = "hidden"
+      }
+      if(el.attributes["data-lax-use-gpu"]) el.attributes.removeNamedItem("data-lax-use-gpu")
+
+      // optmise off screen
+      o.optimise = false 
+      if(el.attributes["data-lax-optimize"] && el.attributes["data-lax-optimize"].value === 'true') {
+        o.optimise = true
+        const bounds = el.getBoundingClientRect()
+        el.setAttribute("data-lax-opacity", `${-bounds.height-1} 0, ${-bounds.height} 1, ${window.innerHeight} 1, ${window.innerHeight+1} 0`)
+        el.attributes.removeNamedItem("data-lax-optimize")
+      }
+
+      // build transform list
+      for(let i=0; i<el.attributes.length; i++) {
+        const a = el.attributes[i]
+        if(a.name.indexOf("data-lax") < 0) continue
+
+        const b = a.name.split(breakpointsSeparator)
+        const bits = b[0].split("-")
+        const breakpoint = b[1] || "default"
+        if(bits[1] === "lax") {
+          if(a.name === "data-lax-anchor") {
+            o["data-lax-anchor"] = a.value === "self" ? el : document.querySelector(a.value)
+            const rect = o["data-lax-anchor"].getBoundingClientRect()
+            o.anchorTop = Math.floor(rect.top) + window.scrollY
+          } else {
+            const tString = a.value
+              .replace(/vw/g, window.innerWidth)
+              .replace(/vh/g, window.innerHeight)
+              .replace(/elh/g, el.clientHeight)
+              .replace(/elw/g, el.clientWidth)
+              .replace(/\s+/g," ")
+
+            const [arrString, optionString] = tString.split("|")
+            const options = {}
+
+            if(optionString) {
+              optionString.split(" ").forEach((o) => {
+                const [key, val] = o.split("=")
+                options[key] = key && fnOrVal(val)
+              }) 
            }
+
+            const name = b[0]
+            const valueMap = arrString.split(",").map((x) => { 
+                return x.trim().split(" ").map(fnOrVal)
+              }).sort((a,b) => {
+                return a[0] - b[0]  
+              })
+
+            if(!o.transforms[name]) {
+              o.transforms[name] = {}
+            }
+            
+            o.transforms[name][breakpoint] = { valueMap, options } 
          }
        }
+      }

-        lax.elements.push(o)
-      })
+      // sprite sheet animation
+      const spriteData = el.attributes["data-lax-sprite-data"] && el.attributes["data-lax-sprite-data"].value
+      if(spriteData) {
+        o.spriteData = spriteData.split(",").map(x => parseInt(x))
+        el.style.height = o.spriteData[1] + "px"
+        el.style.width = o.spriteData[0] + "px"
+
+        const spriteImage = el.attributes["data-lax-sprite-image"] && el.attributes["data-lax-sprite-image"].value
+        if(spriteImage) {
+          el.style.backgroundImage = `url(${spriteImage})`
+        }
+      }
+
+      return o
    }

-    var lastScroll = 0
+    lax.populateElements = () => {
+      lax.elements = []

-    lax.update = function(y) {
-      var momentum = lastScroll-y
-      lastScroll = y
-
-      lax.elements.forEach(function(o) {
-        var transformString = ""
-        var r = o["data-lax-anchor-top"] ? o["data-lax-anchor-top"]-y : y
-
-        var style = {
-          transform: "",
-          filter: ""
-        }
-
-        for(var i in o.transforms) {
-          var arr = o.transforms[i]
-          var t = transforms[i]
-          var v = intrp(arr, r)
-
-          if(!t) {
-            console.error("lax: " + i + " is not supported")
-            return
-          }
-
-          t(style, v)
-        }
-
-        for(let k in style) {
-          if(style.opacity === 0) { // if opacity 0 don't update
-            o.el.style.opacity = 0 
-          } else {
-            o.el.style[k] = style[k]
-          }
-        }
+      document.querySelectorAll(lax.selector).forEach((el) => {
+        const o = lax.calcTransforms(lax.createLaxObject(el))
+        lax.elements.push(o)
+        lax.updateElement(o)
      })
+
+
+
+      currentBreakpoint = lax.getCurrentBreakPoint()
+    }
+
+    lax.updateElements = () => {
+      lax.elements.forEach((o) => {
+        lax.calcTransforms(o)
+        lax.updateElement(o)
+      }) 
+
+      currentBreakpoint = lax.getCurrentBreakPoint()
+    }
+
+
+    lax.getCurrentBreakPoint = () => {
+      let b = 'default'
+      const w = window.innerWidth
+
+      for(let i in lax.breakpoints) {
+        const px = parseFloat(lax.breakpoints[i])
+        if(px <= w) {
+          b = i
+        } else {
+          break
+        }
+      }
+
+      return b
+    }
+
+    lax.updateElement = (o) => {
+      const { originalStyle, anchorTop, transforms, spriteData, el } = o
+
+      let r = anchorTop ? anchorTop-lastY : lastY
+
+      const style = {
+        transform: originalStyle.transform,
+        filter: originalStyle.filter
+      }
+
+      for(let i in transforms) {
+        const transformData = transforms[i][currentBreakpoint] || transforms[i]["default"]
+
+        if(!transformData) {
+          // console.log(`lax error: there is no setting for key ${i} and screen size ${currentBreakpoint}. Try adding a default value!`)
+          continue
+        }
+
+        let _r = r
+        if(transformData.options.offset) _r = _r+transformData.options.offset
+        if(transformData.options.speed) _r = _r*transformData.options.speed
+        if(transformData.options.loop) _r = _r%transformData.options.loop
+
+        const t = transformFns[i]
+        const v = intrp(transformData.valueMap, _r)
+
+        if(!t) {
+          // console.info(`lax: error ${i} is not supported`)
+          continue
+        }
+
+        t(style, v)
+      }
+
+      if(spriteData) {
+        const [frameW,frameH,numFrames,cols,scrollStep] = spriteData
+        const frameNo = Math.floor(lastY/scrollStep) % numFrames
+        const framePosX = frameNo%cols
+        const framePosY = Math.floor(frameNo/cols)
+        style.backgroundPosition = `-${framePosX*frameW}px -${framePosY*frameH}px`
+      }
+
+      if(style.opacity === 0) { // if opacity 0 don't update
+        el.style.opacity = 0 
+      } else {
+        for(let k in style) {
+          el.style[k] = style[k]
+        }
+      }
+    }
+
+    lax.update = (y) => {
+      if(lastY === y) return
+      lastY = y
+      lax.elements.forEach(lax.updateElement)
    }

    return lax;
Author	SHA1	Message	Date
Alex Fox	8a98a9781c	Merge pull request #29 from arthurdenner/docs/add-use-lax-to-readme docs: Add use-lax to the README.md	2019-04-03 07:17:58 +01:00
Alex Fox	e630079794	fix merge	2019-04-03 07:16:56 +01:00
Alex Fox	f68690aca8	fixed issue with resizing window	2019-04-03 07:16:26 +01:00
Alex Fox	33757cf7fa	Update index.html	2019-04-02 08:24:08 +01:00
Alex Fox	e44b8c7ddb	Update index.html	2019-04-02 08:23:49 +01:00
Alex Fox	57d6726326	Update index.html	2019-04-02 08:22:46 +01:00
Alex Fox	6437b229f9	Merge branch 'master' of https://github.com/alexfoxy/laxx	2019-04-02 07:09:53 +01:00
Alex Fox	359d19e8af	minor code clean up	2019-04-02 07:09:25 +01:00
Alex Fox	e6a322bbac	Update README.md	2019-03-26 17:28:23 +00:00
Alex Fox	b670d2fd12	removed changelog file	2019-03-26 09:02:33 +00:00
Alex Fox	e1ed428663	Update README.md	2019-03-26 08:59:58 +00:00
Alex Fox	877bb3ec1a	Update README.md	2019-03-26 08:51:01 +00:00
Alex Fox	b7d32ace26	Update README.md	2019-03-26 08:49:30 +00:00
Alex Fox	3813e8d486	Merge pull request #30 from alexfoxy/dev Merge 1.2 dev to master	2019-03-26 08:48:40 +00:00
Alex Fox	b4cfc8d6b4	tweaked backface visibility	2019-03-26 08:47:24 +00:00
Alex Fox	f2d3dc0977	readme tweak	2019-03-26 08:40:51 +00:00
Alex Fox	a9a5d6a216	Merge branch 'dev' of https://github.com/alexfoxy/laxx into dev	2019-03-26 08:39:39 +00:00
Alex Fox	f035230a56	tweak readme	2019-03-26 08:39:37 +00:00
Alex Fox	fddfeaabeb	Update README.md	2019-03-26 08:38:37 +00:00
Alex Fox	51dac49553	rc for 1.2	2019-03-26 08:17:49 +00:00
Alex Fox	eb0a1b4230	Merge branch 'spriteanimation' into responsive	2019-03-26 08:16:39 +00:00
Alex Fox	7965234d87	sprite sheet and other changes	2019-03-26 08:16:21 +00:00
Arthur Denner	ea813af50b	docs: Add use-lax to the README.md	2019-03-25 14:12:18 -03:00
Alex Fox	278168414b	x	2019-03-23 16:34:46 +00:00
Alex Fox	25ac2b5497	added sprite sheet animation	2019-03-23 16:31:25 +00:00
Alex Fox	9c9038a3ea	merged master	2019-03-23 13:24:02 +00:00
Alex Fox	bb6133ea2b	Merge pull request #24 from alexfoxy/revert-23-feature-this-bugs Revert "fix "this" bugs"	2019-03-23 13:10:58 +00:00
Alex Fox	0d36e901d7	Revert "fix "this" bugs"	2019-03-23 13:10:36 +00:00
Alex Fox	49c45d8e4f	changed breakpoint seperator and fixed demo	2019-03-23 10:28:43 +00:00
Alex Fox	1247463303	Merge branch 'responsive' of https://github.com/alexfoxy/laxx into responsive	2019-03-23 10:09:15 +00:00
Alex Fox	a587813c1e	x	2019-03-23 10:09:12 +00:00
Alex Fox	08dd1ceb6e	Merge pull request #23 from flycsqaq/feature-this-bugs fix "this" bugs	2019-03-23 10:07:44 +00:00
Alex Fox	f9074ee5e6	Merge pull request #17 from afanjul/responsive Using a class for identify lax elements, and using mobile-first breakpoints	2019-03-23 10:06:42 +00:00
zhoufeiyu	8684fb8ee3	fix this bugs	2019-03-23 13:51:48 +08:00
Alejandro Fanjul	9589627ed7	Using "--" as default separator for breakpoints, but the user could change it for "." or "_", etc. Fixed some coding regarding finding "presets" to avoid looping multiple times. Now we just discover the presets attribute and traverse in another loop. -In the original loop (through attributes), if a preset add another attributes (ie. data-lax-translate-x) the added attributes get traverse in the loop... (as part of the elements attributes).	2019-03-22 17:57:11 +01:00
Alejandro Fanjul	692ff93731	Fixed possible namespace problems using ':' for breakpoints, better to stick to '#' it seems safe to use	2019-03-22 14:04:58 +01:00
Alejandro Fanjul	cf77d95f0e	Merge remote-tracking branch 'upstream/responsive' into responsive Conflicts: src/lax.js	2019-03-22 13:59:27 +01:00
Alejandro Fanjul	1dd3bebbdd	Using a class for identify lax elements, by default ".lax", but the user could define custom one in options Using breakpoints with "mobile-first" approach as latest css frameworks does (ie. bootstrap 4, semantic-ui, etc.)	2019-03-22 13:48:41 +01:00
Alex Fox	33bd72d825	tweak to lax update functio	2019-03-22 12:48:06 +00:00
Alex Fox	b461e7b1cf	fixes and added support for responsive presets	2019-03-22 12:37:43 +00:00
Alex Fox	fee90b3a82	added error for no default setting	2019-03-22 08:38:23 +00:00
Alex Fox	7431ff3840	added support for screen size breakpoints	2019-03-22 08:27:13 +00:00
Alex Fox	07899d3443	Merge branch 'master' into dev	2019-03-20 17:37:45 +00:00
Alex Fox	b99389f388	Update index.html	2019-03-20 10:36:10 +00:00
Alex Fox	027772e364	Merge branch 'dev'	2019-03-19 15:36:26 +00:00
Alex Fox	802fa7592c	added optmize, new presets, background position	2019-03-19 15:36:02 +00:00
Alex Fox	f9395c6c27	Merge branch 'master' into dev	2019-03-19 07:05:54 +00:00
Alex Fox	e8b68c246a	Merge branch 'master' of https://github.com/alexfoxy/laxx	2019-03-18 17:04:07 +00:00
Alex Fox	e2a30f53b5	improved demo performance	2019-03-18 17:03:34 +00:00
Alex Fox	c96ff53460	Update README.md	2019-03-18 16:44:40 +00:00
Alex Fox	9790b42b2e	changes to make usage with react and vue easier	2019-03-18 16:44:08 +00:00
Alex Fox	25d890421b	Merge branch 'master' of https://github.com/alexfoxy/laxx	2019-03-17 11:46:32 +00:00
Alex Fox	842b7d40d6	added populateElements function to call when dom is updated	2019-03-17 11:46:25 +00:00
Alex Fox	4657e7adff	Update README.md	2019-03-17 10:51:07 +00:00
Alex Fox	d768100817	Update README.md	2019-03-17 10:49:44 +00:00
Alex Fox	d274614a28	Create LICENSE	2019-03-17 10:42:33 +00:00
Alex Fox	298f29e188	Merge branch 'master' of https://github.com/alexfoxy/laxx	2019-03-17 10:15:20 +00:00
Alex Fox	4791239fd3	tweaked css in demo	2019-03-17 10:15:13 +00:00
Alex Fox	793a9bb36e	Merge pull request #4 from 0xflotus/patch-1 fixed implement dependency	2019-03-16 17:36:48 +00:00
0xflotus	afe3114f9b	fixed implement dependency	2019-03-16 17:53:40 +01:00
Alex Fox	b50e688197	Merge branch 'master' into dev	2019-03-13 15:52:47 +00:00
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