vuejs-webpack-starter/assets/css/base/_transitions.scss

//  _                    _ _   _
// | |_ _ _ __ _ _ _  __(_) |_(_)___ _ _  ___
// |  _| '_/ _` | ' \(_-< |  _| / _ \ ' \(_-<
//  \__|_| \__,_|_||_/__/_|\__|_\___/_||_/__/
@mixin accordeon-transition($h){
  &.accordeon-enter,
  &.accordeon-leave-to{
    // opacity: 0;
    height:0.01vh;
    padding-top: 0;
    padding-bottom: 0;
    // transform: translateY(100%);
    // transform: translate3d(0, 100%, 0);
  }
  &.accordeon-enter-to,
  &.accordeon-leave{
    // opacity:1;
    height:$h;
    // transform: translateY(0%);
    // transform: translate3d(0, 0, 0);
  }
  &.accordeon-enter-active{
    transition: all 300ms ease-in-out;
  }
  &.accordeon-leave-active{
    transition: all 200ms ease-in-out;
  }

}

@mixin fade-transition() {
  &.fade-enter,
  &.fade-leave-to{
    opacity: 0;
  }
  &.fade-enter-to,
  &.fade-leave{
    opacity:1;
  }
  &.fade-enter-active{
    transition: all 300ms ease-in-out;
  }
  &.fade-leave-active{
    transition: all 200ms ease-in-out;
  }
}