ant-design/site/theme/static/demo.less

.code-boxes-col-1-1 {
  width: 100%;
}

.code-boxes-col-2-1 {
  display: inline-block;
  vertical-align: top;
}

.code-box {
  border: 1px solid @site-border-color-split;
  border-radius: @border-radius-sm;
  display: inline-block;
  width: 100%;
  position: relative;
  margin: 0 0 16px;
  transition: all .2s;

  &:target {
    border: 1px solid @primary-color;
  }

  &-expand-trigger {
    cursor: pointer;
    font-size: 14px;
    color: #9199ac;
    margin-left: 5px;
    opacity: .8;
    transition: all .3s;
    top: -2px;
    position: relative;

    &-active {
      color: #3b4357;
    }
  }

  &-title {
    position: absolute;
    top: -14px;
    padding: 1px 8px;
    margin-left: -8px;
    color: #777;
    border-radius: @border-radius-sm @border-radius-sm 0 0;
    background: #fff;
    transition: background-color .4s;

    a,
    a:hover {
      color: @site-text-color;
      font-size: @font-size-base;
      font-weight: 500;
    }
  }

  a.edit-button {
    position: absolute;
    right: -16px;
    top: 7px;
    font-size: 12px;
    transform: scale(0.9);
    background: #fff;
    padding-right: 6px;
    text-decoration: none;
  }

  &-demo {
    border-bottom: 1px solid @site-border-color-split;
    padding: 42px 24px 50px;
    color: rgba(0, 0, 0, .65);
  }

  iframe {
    width: 100%;
    border: 0;
  }

  &-meta {
    &.markdown {
      position: relative;
      padding: 18px 32px;
      border-radius: 0 0 @border-radius-sm @border-radius-sm;
      transition: background-color .4s;
      width: 100%;
      font-size: @font-size-base;
    }

    blockquote {
      margin: 0;
    }

    h4,
    section& p {
      margin: 0;
      width: 98%;
    }

    > p {
      font-size: 12px;
      margin: 0.5em 0;
      padding-right: 25px;
      width: 100%;
      word-break: break-word;
    }
  }

  &.expand &-meta {
    border-radius: 0;
    border-bottom: 1px dashed @site-border-color-split;
  }

  .code-expand-icon {
    position: absolute;
    right: 16px;
    bottom: 23px;
    cursor: pointer;
    width: 16px;
    height: 16px;
    line-height: 16px;
    text-align: center;
  }

  .code-expand-icon-show,
  .code-expand-icon-hide {
    transition: all 0.4s;
    user-select: none;
    position: absolute;
    left: 0;
    top: 0;
    margin: 0;
    max-width: 100%;
    vertical-align: baseline;
    box-shadow: none;
  }

  .code-expand-icon-show {
    opacity: 0.55;
    pointer-events: auto;
    &:hover {
      opacity: 1;
    }
  }

  .code-expand-icon.ant-tooltip-open .code-expand-icon-show {
    opacity: 1;
  }

  .code-expand-icon-hide {
    opacity: 0;
    pointer-events: none;
  }

  .highlight-wrapper {
    display: none;
    overflow: auto;
    border-radius: 0 0 @border-radius-sm @border-radius-sm;

    &-expand {
      display: block;
    }
  }

  .highlight {
    position: relative;
    pre {
      margin: 0;
      padding: 0;
      background: #fff;
    }
    &:not(:first-child) {
       border-top: 1px dashed @site-border-color-split;
    }
  }

  &-actions {
    position: absolute;
    top: 10px;
    right: 12px;
    text-align: right;
    > i,
    > form {
      display: inline-block;
      margin-left: 8px;
    }
  }

  &-code-copy {
    font-size: 14px;
    cursor: pointer;
    color: @site-text-color-secondary;
    transition: all .24s;
    background: #fff;
    width: 20px;
    height: 20px;
    line-height: 20px;
    text-align: center;
    border-radius: 20px;
    opacity: 0;

    &:hover {
      color: @site-text-color-secondary;
      transform: scale(1.2);
    }
    &.anticon-check {
      color: @green-6 !important;
      font-weight: bold;
    }
  }

  &-codepen {
    background: transparent url("https://gw.alipayobjects.com/zos/rmsportal/OtZslpOjYXijshDERXwc.svg") center / 14px no-repeat;
    width: 20px;
    height: 20px;
    cursor: pointer;
    opacity: 0;
    transition: all .3s;
    border: 0;
    text-indent: -9999px;
    overflow: hidden;
  }

  &-riddle {
    background: transparent url("https://gw.alipayobjects.com/zos/rmsportal/DlHbxMCyeuyOrqOdbgik.svg") center / 14px no-repeat;
    width: 20px;
    height: 20px;
    cursor: pointer;
    opacity: 0;
    transition: all .3s;
    border: 0;
    text-indent: -9999px;
    overflow: hidden;
  }

  .highlight-wrapper:hover &-code-copy,
  .highlight-wrapper:hover &-codepen,
  .highlight-wrapper:hover &-riddle {
    opacity: 1;
  }

  pre {
    margin: 0;
    width: auto;
    code {
      border: none;
      background: #fff;
    }
  }
}