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<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>列表 - 内凹型副标题</title>
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<ul class="mdui-list" style="max-width: 360px;">
<li class="mdui-subheader-inset">Friends</li>
<li class="mdui-list-item">
<div class="mdui-list-item-avatar"><img src="https://cdn.w3cbus.com/mdui/docs~1/static/6f40c42e0eceb58345d3.jpg"/></div>
<div class="mdui-list-item-content">Brendan Lim</div>
</li>
<li class="mdui-list-item">
<div class="mdui-list-item-avatar"><img src="https://cdn.w3cbus.com/mdui/docs~1/static/d521c51519ab714a99f9.jpg"/></div>
<div class="mdui-list-item-content">me, Scott, Jennifer</div>
</li>
<li class="mdui-subheader-inset">Familay</li>
<li class="mdui-list-item">
<div class="mdui-list-item-avatar"><img src="https://cdn.w3cbus.com/mdui/docs~1/static/3a5e4be433058833e667.jpg"/></div>
<div class="mdui-list-item-content">Grace Ng</div>
</li>
<li class="mdui-list-item">
<div class="mdui-list-item-avatar"><img src="https://cdn.w3cbus.com/mdui/docs~1/static/5e010867ef986d05d625.jpg"/></div>
<div class="mdui-list-item-content">Kerem Suer</div>
</li>
</ul>
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