bootstrap/scss/build/_mixins.scss

//
// These mixins are used when Jasny Bootstrap is
// built without importing vanilla Bootstrap@mixin 
// --------------------------------------------------


// CSS3 PROPERTIES
// --------------------------------------------------

// Single side border-radius
@mixin border-top-radius($radius) {
  border-top-right-radius: $radius;
   border-top-left-radius: $radius;
}
@mixin border-right-radius($radius) {
  border-bottom-right-radius: $radius;
     border-top-right-radius: $radius;
}
@mixin border-bottom-radius($radius) {
  border-bottom-right-radius: $radius;
   border-bottom-left-radius: $radius;
}
@mixin border-left-radius($radius) {
  border-bottom-left-radius: $radius;
     border-top-left-radius: $radius;
}

// Drop shadows
@mixin box-shadow($shadow) {
  -webkit-box-shadow: $shadow; // iOS <4@mixin 3 & Android <4@mixin 1
          box-shadow: $shadow;
}
@mixin transition($transition) {
  -webkit-transition: $transition;
       -o-transition: $transition;
          transition: $transition;
}

// Transition
@mixin transition-property($transition-property) {
  -webkit-transition-property: $transition-property;
          transition-property: $transition-property;
}
@mixin transition-delay($transition-delay) {
  -webkit-transition-delay: $transition-delay;
          transition-delay: $transition-delay;
}
@mixin transition-duration($transition-duration) {
  -webkit-transition-duration: $transition-duration;
          transition-duration: $transition-duration;
}
@mixin transition-timing-function($timing-function) {
  -webkit-transition-timing-function: $timing-function;
          transition-timing-function: $timing-function;
}
@mixin transition-transform($transition) {
  -webkit-transition: -webkit-transform $transition;
     -moz-transition: -moz-transform $transition;
       -o-transition: -o-transform $transition;
          transition: transform $transition;
}