.demo {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  background-color: #fff;
  border-radius: 8px;
  overflow: hidden;
  margin-top: 8px;
  .preview {
    flex: 1;
    .duration {
      position: absolute;
      bottom: 0;
      width: 100%;
      text-align: center;
      color: lightgray;
    }
  }

  .code {
    flex: 1;

    .method {
      position: absolute;
      inset: 0;
      color: #4a7b7b;
      padding-left: 34px;
      &.option {
        cursor: pointer;
        color: lightgray;
        box-shadow: 1px 1px 3px 0px rgba(0, 0, 0, 0.04);
        .text {
          text-decoration: line-through;
        }
        &:hover {
          color: darkgray;
          background-color: #f1f1f1;
        }
        &::after {
          content: '点击切换';
          position: absolute;
          right: 8px;
          display: inline-block;
          font-size: 10px;
          user-select: none;
        }
      }
    }
  }
}