<div class="row border-bottom white-bg dashboard-header" style="text-align:center">
    <div role="search" class="navbar-form-custom">
        <div class="form-group">
            <input type="text" placeholder="请输入您需要查找的内容 …" class="form-control" name="top-search" id="top-search" />
        </div>
    </div>
</div>