HTML
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<title>文本框 - 可展开文本框</title>
<link rel="stylesheet" href="../assets/mdui-v0.3.0/css/mdui.min.css"/>
</head>
<body>
<div class="mdui-container">
<div class="mdui-textfield mdui-textfield-expandable">
<button class="mdui-textfield-icon mdui-btn mdui-btn-icon"><i class="mdui-icon material-icons">search</i></button>
<input class="mdui-textfield-input" type="text" placeholder="Search"/>
<button class="mdui-textfield-close mdui-btn mdui-btn-icon"><i class="mdui-icon material-icons">close</i></button>
</div>
<div class="mdui-textfield mdui-textfield-expandable mdui-float-right">
<button class="mdui-textfield-icon mdui-btn mdui-btn-icon"><i class="mdui-icon material-icons">search</i></button>
<input class="mdui-textfield-input" type="text" placeholder="Search"/>
<button class="mdui-textfield-close mdui-btn mdui-btn-icon"><i class="mdui-icon material-icons">close</i></button>
</div>
</div>
<script src="../assets/mdui-v0.3.0/js/mdui.min.js"></script>
</body>
</html>