<!DOCTYPE htm>

<meta charset="utf-8">

<meta name="viewport" content="width=device-width, initial-scale=1.0">

<link href="https://cdn.bootcss.com/bootstrap/2.3.2/css/bootstrap.min.css" rel="stylesheet">

<style>body {margin:10px}</style>

<div class="container">

    <div class="row">

        <div class="span5">

            <form class="well form-search">

                <input type="text" class="input-medium search-query">

                <button type="submit" class="btn">搜索</button>

            </form>

        </div>

    </div>

</div>

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