bootstrap 响应式工具

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Document</title>
    <!-- 处理低版本IE 4.0不考虑IE8 -->
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <!-- 移动端视口的设置 -->
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <!-- 引入bootstrap.css -->
    <link rel="stylesheet" href="css/bootstrap.css">
    <style>
        .tips1{ 
            width:30px;
            height:300px; 
            background:black; 
            right:0;
        }
        .tips2{ 
            width:30px; 
            height:100px; 
            background:blue; 
            right:0;
        }
    </style>
</head>
<body>
<div class="container-fluid">
    <div class="row">
        <div class="tips1 visible-lg-block affix"></div>
        <div class="tips2 hidden-lg affix"></div>
    </div>
    <div>aaaaaaaaaa</div>
</div>
</body>
<script>
    /*
        响应式工具
            概念
                -针对不同设备展示或隐藏页面内容
            可见类
                -visible*-*
                    》lg md sm xs
                    》block inline inline-block
                -hidden-*
                    》lg md sm xs
            打印类
                -visible-print-*  hidden-print
            实例:天猫侧边栏

     */

</script>
原文地址:https://www.cnblogs.com/xiaozhishang/p/5216790.html