ant-design/site/templates/code.html

<div class="code-box" id="code-box-{{post.meta.id}}">
  <div class="code-box-demo">
    <div id="{{post.meta.id}}"></div>
    {{ post.html }}
  </div>
  <div class="code-box-meta markdown">
    <div class="code-box-title">
      <a href="#code-box-{{post.meta.id}}">{{ post.title }}</a>
    </div>
    {{ post.meta.description }}
    <span class="collapse anticon anticon-circle-o-right"></span>
  </div>
</div>