案例:Bootstrap案例     状态:可编辑再运行    进入横版
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<!DOCTYPE html>
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<html>
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<head>
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    <meta charset="utf-8"> 
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    <title>Bootstrap 实例 - 进度条</title>
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    <link rel="stylesheet" href="/css/bootstrap/bootstrap3.3.7.min.css">
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    <script src="/js/bootstrap/jquery.min.js"></script>
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    <script src="/js/bootstrap/bootstrap3.3.7.min.js"></script>
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</head>
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<body>
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<div class="progress">
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    <div class="progress-bar" role="progressbar" aria-valuenow="60"
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         aria-valuemin="0" aria-valuemax="100" style="width: 40%;">
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        <span class="sr-only">40% 完成</span>
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    </div>
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</div>
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</body>
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</html>

 运行结果 
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