HTML
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>列表 - 分割线</title>
<link rel="stylesheet" href="https://cdn.w3cbus.com/library/mdui/1.0.2/css/mdui.min.css"/>
</head>
<body>
<ul class="mdui-list" style="max-width: 360px;">
<li class="mdui-list-item">Inbox</li>
<li class="mdui-list-item">Starred</li>
<li class="mdui-divider"></li>
<li class="mdui-list-item">All mail</li>
<li class="mdui-list-item">Trash</li>
</ul>
<script src="https://cdn.w3cbus.com/library/mdui/1.0.2/js/mdui.min.js"></script>
</body>
</html>