简单教程
提交运行
代码编辑器:
<meta name="viewport" content="width=device-width, initial-scale=1"> <link rel="stylesheet" href="/static/lib/bootstrap/4.0.0/css/bootstrap.min.css"> <script src="/static/lib/jquery/3.3.1/jquery.min.js"></script> <script src="/static/lib/popper.js/1.12.9/umd/popper.min.js"></script> <script src="/static/lib/bootstrap/4.0.0/js/bootstrap.min.js"></script> <div class="container"> <p>在移动设备上,即屏幕宽度小于 576px 时,四个列将会上下堆叠排版。</p> <div class="row"> <div class="col-sm-4" style="background-color:lavender;">.col-sm-4</div> <div class="col-sm-8" style="background-color:lavenderblush;">.col-sm-8</div> </div> </div>
运行结果: