vant/packages/popup/index.less

@import '../style/var';

.van {
  &-overflow-hidden {
    overflow: hidden !important;
  }

  &-popup {
    position: fixed;
    top: 50%;
    left: 50%;
    max-height: 100%;
    overflow-y: auto;
    background-color: @white;
    transition: .3s ease-out;
    -webkit-overflow-scrolling: touch;
    transform: translate3d(-50%, -50%, 0);

    &--top {
      width: 100%;
      top: 0;
      right: auto;
      bottom: auto;
      left: 50%;
      transform: translate3d(-50%, 0, 0);
    }

    &--right {
      top: 50%;
      right: 0;
      bottom: auto;
      left: auto;
      transform: translate3d(0, -50%, 0);
    }

    &--bottom {
      width: 100%;
      top: auto;
      bottom: 0;
      right: auto;
      left: 50%;
      transform: translate3d(-50%, 0, 0);
    }

    &--left {
      top: 50%;
      right: auto;
      bottom: auto;
      left: 0;
      transform: translate3d(0, -50%, 0);
    }

    &-slide-top-enter,
    &-slide-top-leave-active {
      transform: translate3d(-50%, -100%, 0);
    }

    &-slide-right-enter,
    &-slide-right-leave-active {
      transform: translate3d(100%, -50%, 0);
    }

    &-slide-bottom-enter,
    &-slide-bottom-leave-active {
      transform: translate3d(-50%, 100%, 0);
    }

    &-slide-left-enter,
    &-slide-left-leave-active {
      transform: translate3d(-100%, -50%, 0);
    }
  }
}