<li>
<img class="avatar" src="http://avatar.test.qupai.me/20160506/b8130ac8-076d-47e4-84fb-4c920fe61807.jpg">
<div class="detail">
  <div class="head">
    <span class="nick"></span>
    <span class="time"></span>
  </div>
  <p class="txt"></p>
</div>
</li>