ionic-framework/ionic/components/app/mixins/transition.scss

// Transition Mixins
// --------------------------------------------------


@mixin transition($transition...) {
  -webkit-transition: $transition;
          transition: $transition;
}

@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($transition-timing) {
   -webkit-transition-timing-function: $transition-timing;
           transition-timing-function: $transition-timing;
}

@mixin transition-property($property) {
  -webkit-transition-property: $property;
          transition-property: $property;
}

@mixin transition-transform($properties...) {
  // special case cuz of transform vendor prefixes
  -webkit-transition: -webkit-transform $properties;
          transition: transform $properties;
}