ant-design/style/components/dialog/Dialog.less

.@{dialogPrefixCls} {
  outline: none;
  position: absolute;
  left: -9999px;
  top: -9999px;
  z-index: 1000;

  &-wrap * {
    box-sizing: border-box;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  }

  &-wrap-hidden > & {
    display: none;
  }

  &-title {
    margin: 0;
    font-size: 14px;
    line-height: 21px;
    font-weight: bold;
  }

  &-content {
    position: relative;
    background-color: #ffffff;
    border: none;
    border-radius: 6px 6px;
    background-clip: padding-box;
    outline: 0;
  }

  &-close {
    cursor: pointer;
    outline: none;
    margin-top: -2px;
    float: right;
    font-size: 21px;
    font-weight: 700;
    line-height: 1;
    color: #000;
    text-shadow: 0 1px 0 #fff;
    filter: alpha(opacity=20);
    opacity: .2;
    text-decoration: none;

    &:hover {
      opacity: 1;
      filter: alpha(opacity=100);
      text-decoration: none;
    }
  }

  &-header {
    padding: 13px 20px 14px 20px;
    border-radius: 5px 5px 0 0;
    background: #fff;
    color: #666;
    border-bottom: 1px solid #e9e9e9;
  }

  &-body {
    padding: 20px;
  }

  &-footer {
    border-top: 1px solid #e9e9e9;
    padding: 10px 20px 10px 10px;
    text-align: right;
    border-radius: 0 0 5px 5px;
  }

  .effect() {
    animation-duration: 0.3s;
    animation-fill-mode: both;
  }

  &-wrap-hidden > &&-zoom-enter,
  &-wrap-hidden > &&-zoom-leave {
    display: block;
  }

  &-zoom-enter {
    opacity: 0;
    .effect();
    animation-timing-function: cubic-bezier(0.18, 0.89, 0.32, 1.28);
    animation-play-state: paused;
  }

  &-zoom-leave {
    .effect();
    animation-timing-function: cubic-bezier(0.6, -0.3, 0.74, 0.05);
    animation-play-state: paused;
  }

  &-zoom-enter&-zoom-enter-active {
    animation-name: rcDialogZoomIn;
    animation-play-state: running;
  }

  &-zoom-leave&-zoom-leave-active {
    animation-name: rcDialogZoomOut;
    animation-play-state: running;
  }

  @keyframes rcDialogZoomIn {
    0% {
      opacity: 0;
      transform-origin: 50% 50%;
      transform: scale(0, 0);
    }
    100% {
      opacity: 1;
      transform-origin: 50% 50%;
      transform: scale(1, 1);
    }
  }
  @keyframes rcDialogZoomOut {
    0% {
      opacity: 1;
      transform-origin: 50% 50%;
      transform: scale(1, 1);
    }
    100% {
      opacity: 0;
      transform-origin: 50% 50%;
      transform: scale(0, 0);
    }
  }
}