diff --git a/src/packages/autocomplete/stylesheets/autocomplete.less b/src/packages/autocomplete/stylesheets/autocomplete.less
index eb78828b6..26f7c28d8 100644
--- a/src/packages/autocomplete/stylesheets/autocomplete.less
+++ b/src/packages/autocomplete/stylesheets/autocomplete.less
@@ -1,6 +1,6 @@
 .select-list.autocomplete {
   box-sizing: content-box;
-  margin-left: 0px;
+  margin-left: 0;
 }
 
 .autocomplete ol {
@@ -13,8 +13,8 @@
 .select-list.autocomplete ol li {
   padding-top: 5px;
   padding-bottom: 5px;
-  padding-left: 0px;
-  padding-right: 0px;
+  padding-left: 0;
+  padding-right: 0;
 }
 
 .autocomplete span {
diff --git a/src/packages/command-logger/stylesheets/command-logger.less b/src/packages/command-logger/stylesheets/command-logger.less
index 87a21e502..975b418d4 100644
--- a/src/packages/command-logger/stylesheets/command-logger.less
+++ b/src/packages/command-logger/stylesheets/command-logger.less
@@ -2,8 +2,8 @@
   position: absolute;
   width: 100%;
   height: 100%;
-  top: 0px;
-  left: 0px;
+  top: 0;
+  left: 0;
   overflow: auto;
   z-index: 99;
 }
diff --git a/src/packages/markdown-preview/stylesheets/markdown-preview.less b/src/packages/markdown-preview/stylesheets/markdown-preview.less
index 165ab77f1..ad7aeaac8 100644
--- a/src/packages/markdown-preview/stylesheets/markdown-preview.less
+++ b/src/packages/markdown-preview/stylesheets/markdown-preview.less
@@ -190,7 +190,7 @@
 
     li > :first-child,
     li ul:first-of-type {
-      margin-top: 0px;
+      margin-top: 0;
     }
   }
 
@@ -216,11 +216,11 @@
       padding: 0;
     }
     & > :first-child {
-      margin-top: 0px;
+      margin-top: 0;
     }
 
     & > :last-child {
-      margin-bottom: 0px;
+      margin-bottom: 0;
     }
   }
 
@@ -228,11 +228,11 @@
     margin: 0 0 15px;
     padding: 0 15px;
     & > :first-child {
-      margin-top: 0px;
+      margin-top: 0;
     }
 
     & > :last-child {
-      margin-bottom: 0px;
+      margin-bottom: 0;
     }
   }
 
@@ -242,11 +242,11 @@
     color: #777;
 
     & > :first-child {
-      margin-top: 0px;
+      margin-top: 0;
     }
 
     & > :last-child {
-      margin-bottom: 0px;
+      margin-bottom: 0;
     }
   }
 
@@ -372,7 +372,7 @@
   // Inline code snippets
   code, tt {
     margin: 0 2px;
-    padding: 0px 5px;
+    padding: 0 5px;
     border: 1px solid #eaeaea;
     background-color: #f8f8f8;
     border-radius:3px;
diff --git a/src/packages/status-bar/stylesheets/status-bar.less b/src/packages/status-bar/stylesheets/status-bar.less
index 75d60e882..4867ecfdf 100644
--- a/src/packages/status-bar/stylesheets/status-bar.less
+++ b/src/packages/status-bar/stylesheets/status-bar.less
@@ -33,7 +33,7 @@
 .status-bar .git-status.octicons {
   display: none;
   padding-left: 10px;
-  margin-top:-2px;
+  margin-top: -2px;
 }
 
 .status-bar .octicons:before {
@@ -62,7 +62,7 @@
 
 .status-bar .ignored-status-icon:before {
   content: "\f099";
-  margin-right: 0px;
+  margin-right: 0;
 }
 
 .status-bar .commits-behind-label:before {
diff --git a/src/packages/wrap-guide/stylesheets/wrap-guide.less b/src/packages/wrap-guide/stylesheets/wrap-guide.less
index b73c85264..caa485d36 100644
--- a/src/packages/wrap-guide/stylesheets/wrap-guide.less
+++ b/src/packages/wrap-guide/stylesheets/wrap-guide.less
@@ -3,5 +3,5 @@
   width: 1px;
   z-index: 100;
   position: absolute;
-  top: 0px;
+  top: 0;
 }
diff --git a/static/editor.less b/static/editor.less
index b5cf00d9f..0d48ba7e1 100644
--- a/static/editor.less
+++ b/static/editor.less
@@ -88,7 +88,7 @@
 
 .editor .indent-guide {
   display: inline-block;
-  box-shadow: inset 1px 0px;
+  box-shadow: inset 1px 0;
 }
 
 .editor .vertical-scrollbar {
diff --git a/static/jasmine.less b/static/jasmine.less
index d90335ad9..19c5d18c5 100644
--- a/static/jasmine.less
+++ b/static/jasmine.less
@@ -76,21 +76,21 @@ body {
 }
 
 #HTMLReporter .results .suite + .suite, #HTMLReporter .results .spec + .spec {
-  border-radius: 0px;
+  border-radius: 0;
 }
 
 #HTMLReporter .results .suite, #HTMLReporter .results .spec {
   border: 2px solid #222;
-  border-radius: 7px 0px 0px 0px;
+  border-radius: 7px 0 0 0;
   border-right: none;
   border-bottom: none;
   padding: 5px;
-  padding-right: 0px;
-  padding-bottom: 0px;
+  padding-right: 0;
+  padding-bottom: 0;
 }
 
 #HTMLReporter .results .suite:first-child {
-  border-radius: 0px;
+  border-radius: 0;
   border: 2px solid #6A4A3C;
   border-top: 0;
   border-left: 0;
@@ -99,12 +99,12 @@ body {
 
 #HTMLReporter .results .suite {
   border: 2px solid #6A4A3C;
-  border-radius: 7px 0px 0px 0px;
+  border-radius: 7px 0 0 0;
   border-right: none;
   border-bottom: none;
   padding: 5px;
-  padding-right: 0px;
-  padding-bottom: 0px;
+  padding-right: 0;
+  padding-bottom: 0;
   background-color:rgba(204,51,63,0.33);
 }
 
diff --git a/static/popover-list.less b/static/popover-list.less
index 4d33416e9..7062f4c17 100644
--- a/static/popover-list.less
+++ b/static/popover-list.less
@@ -3,7 +3,7 @@
   min-width: 200px;
   border: 2px solid #222;
   -webkit-box-shadow: 0 0 3px 3px rgba(0, 0, 0, .5);
-  margin-left: 0px;
+  margin-left: 0;
   position: relative;
 }
 
diff --git a/themes/atom-dark-ui/editor.less b/themes/atom-dark-ui/editor.less
index e4f254a93..ed246e1fa 100644
--- a/themes/atom-dark-ui/editor.less
+++ b/themes/atom-dark-ui/editor.less
@@ -5,7 +5,7 @@
 }
 
 .editor .gutter.drop-shadow {
-  -webkit-box-shadow: -2px 0px 10px 2px #222;
+  -webkit-box-shadow: -2px 0 10px 2px #222;
 }
 
 @-webkit-keyframes highlight {
diff --git a/themes/atom-light-ui/editor.less b/themes/atom-light-ui/editor.less
index 2c7c2d7a8..f766fb141 100644
--- a/themes/atom-light-ui/editor.less
+++ b/themes/atom-light-ui/editor.less
@@ -11,7 +11,7 @@
 }
 
 .editor .gutter.drop-shadow {
-  -webkit-box-shadow: -2px 0px 10px 2px #222;
+  -webkit-box-shadow: -2px 0 10px 2px #222;
 }
 
 @-webkit-keyframes highlight {