ionic-framework/scss/ionic/animations/__simple.scss

// The animations in this file are "simple" - not too complex
// and pretty easy on performance. They can be overidden
// and enhanced easily.

@-webkit-keyframes slideInLeft {
  0% {
    -webkit-transform: translate3d(100%, 0, 0);
  }
  100% {
    -webkit-transform: translate3d(0,0,0);
  }
}
@-webkit-keyframes slideOutLeft {
  0% {
    -webkit-transform: translate3d(0px,0,0);
  }
  100% {
    -webkit-transform: translate3d(-100%,0,0);
  }
}
@-webkit-keyframes slideInRight {
  0% {
    -webkit-transform: translate3d(-100%,0,0);
  }
  100% {
    -webkit-transform: translate3d(0,0,0);
  }
}
@-webkit-keyframes slideOutRight {
  0% {
    -webkit-transform: translate3d(0%,0,0);
  }
  100% {
    -webkit-transform: translate3d(100%,0,0);
  }
}

.slide-in-left {
  &.ng-enter, > .ng-enter {
    -webkit-animation-duration: 250ms;
    -webkit-animation-fill-mode: both;
    -webkit-animation-timing-function: ease-in-out;
    -webkit-animation-name: slideInLeft;
  }
  &.ng-leave, > .ng-leave {
    -webkit-animation-duration: 250ms;
    -webkit-animation-fill-mode: both;
    -webkit-animation-timing-function: ease-in-out;
    -webkit-animation-name: slideOutLeft;
  }
}

.slide-out-left {
  &.ng-enter, > .ng-enter {
    -webkit-animation-duration: 250ms;
    -webkit-animation-fill-mode: both;
    -webkit-animation-timing-function: ease-in-out;
    -webkit-animation-name: slideOutLeft;
  }
  &.ng-leave, > .ng-leave {
    -webkit-animation-duration: 250ms;
    -webkit-animation-fill-mode: both;
    -webkit-animation-timing-function: ease-in-out;
    -webkit-animation-name: slideInLeft;
  }
}

.slide-in-right {
  &.ng-enter, > .ng-enter {
    -webkit-animation-duration: 250ms;
    -webkit-animation-fill-mode: both;
    -webkit-animation-timing-function: ease-in-out;
    -webkit-animation-name: slideInRight;
  }
  &.ng-leave, > .ng-leave {
    -webkit-animation-duration: 250ms;
    -webkit-animation-fill-mode: both;
    -webkit-animation-timing-function: ease-in-out;
    -webkit-animation-name: slideOutRight;
  }
}

.slide-out-right {
  &.ng-enter, > .ng-enter {
    -webkit-animation-duration: 2250ms;
    -webkit-animation-fill-mode: both;
    -webkit-animation-timing-function: ease-in-out;
    -webkit-animation-name: slideOutRight;
  }
  &.ng-leave, > .ng-leave {
    -webkit-animation-duration: 2250ms;
    -webkit-animation-fill-mode: both;
    -webkit-animation-timing-function: ease-in-out;
    -webkit-animation-name: slideInRight;
  }
}