案例：ionic案例     状态：可编辑再运行    进入竖版
 运行结果　
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<html ng-app="ionicApp">
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    <head>
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        <meta charset="utf-8">
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        <meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no, width=device-width">
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        <title>W3xue教程(w3xue.com)</title>
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        <link href="https://cdn.bootcss.com/ionic/1.3.2/css/ionic.css" rel="stylesheet">
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        <script src="https://cdn.bootcss.com/ionic/1.3.2/js/ionic.bundle.min.js"></script>
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    </head>
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    <body>
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    <div class="bar bar-header">
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      <div class="h1 title">浮动标签</div>
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    </div>
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    <div class="content has-header">
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      <div class="list">
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        <label class="item item-input item-floating-label">
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          <span class="input-label has-input">First Name</span>
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          <input type="text" placeholder="First Name">
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        </label>
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        <label class="item item-input item-floating-label">
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          <span class="input-label">Last Name</span>
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          <input type="text" placeholder="Last Name">
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        </label>
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        <label class="item item-input item-floating-label">
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          <span class="input-label">Email</span>
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          <input type="text" placeholder="Email">
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        </label>
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      </div>
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      <div class="padding">
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        <button class="button button-block button-positive">Create Account</button>
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      </div>
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    </div>
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  </body>
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</html>
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