.demo-split{
  height:500px;
  .bottom-pane{
    .demo-split-pane{
      height: 100%;
      overflow: auto;
    }
  }
  .hljs{
    background: transparent!important;
  }
  .btn-copy{
    position: absolute;
    top: 10px;
    right: 25px;
  }
}