Bootstrap响应式框架Bootstrap栅格系统

 Bootstrap 1

 

作用显示图:Bootstrap 2

Bootstrap 是一个用于快速开发 Web 应用程序和网站的前端框架。Bootstrap 是基于 HTML、CSS、JAVASCRIPT 的。
Bootstrap 提供了一些辅助类,以便更快地实现对移动设备友好的开发。这些可以通过媒体查询结合大型、小型和中型设备,实现内容对设备的显示和隐藏。
row 行,
-md 桌面显示器
-ms 平板显示器
-xs 手机显示器
1行有12列
<div class= "row">
  <div class = "col-md-12"></div>   
<div class = "col-ms-12"></div>
<div class = "col-xs-12"></div>    //表示一行中有12列
</div>


<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="css/bootstrap.min.css"/>
    <script language="JavaScript" src="js/jquery-3.js"></script>
    <style type="text/css">
        *{
            top: 0px;
            padding: 0px;
            text-decoration: none;
            list-style-type: none;
        }
        .top-styl{
            height: 50px;
            border: 1px solid red;
            background-color: #000000;
        }
        .img-styl{
            width: 174px;
            height: 50px;
            background: url("imges/logo.png")no-repeat 0px 3px;
            background-size: contain;
            float: left;
        }
        .sousuo-styl{
            width: 187px;
            float: left;
        }
        .top-search-input{
            width: 150px;
            padding: 0 5px;
            height: 30px;
            border: 0;
            background: #363636;
            float: left;
            color: #ccc;
        }
        .top-search-submit{
            width: 30px;
            height: 30px;
            border: 0;
            background:  green url("imges/zoom.gif")center center no-repeat;
            float: left;
            cursor: pointer;          //光标指针
        }
        .dao-styll{
            float: left;
            font-size: 16px;
            width: 329px;
            margin-left: 33px;
            margin-top: 11px;
        }
        .dao-styll li{
            float: left;
            position: relative;      //相对定位
            text-align: center;      //居中
            padding: 0 7px;
        }
        .dao-styll >li:hover{
            background-color: #999;
        }
        .dao-styll >li >a{
            color: #FFF;
            width: 100%;
            height: 34px;
            text-decoration: none;    //取消下划线
        }
        .dz-styl{
            float: right;
            margin: -19px -9px 6px 21px;
        }
        .imgs-styl{
            padding: 11px 0px 0px 114px;
            float: right;
            margin: 0px -98px -3px 8px;
        }
        .green-styl{
            color: green;
        }
        .zc-styl{
            color: white;
        }
        a{
            text-decoration: none;
        }
    </style>
</head>
<body>
    <div class="container-fluid">             //fluid表示用 百分比
        <div class="row">               //row  行
            <div class="top-styl col-md-12">        //col-md-12 每行桌面占12列
                <div class="row">
                    <div class=" col-md-offset-1 col-md-9">   //col-md-offset-1 列偏移1列
                        <div class="row">
                        <div class="col-md-3 col-xs-4">
                            <div class="img-styl"></div>
                        </div>
                            <div class="col-md-3 ">
                                <div class="sousuo-styl" style="padding-left: 7px; margin: 8px auto;">
                                    <input class="top-search-input" value="" type="text"><input
                                        class="top-search-submit" type="submit" value="" />
                                </div>
                            </div>
                            <div class="col-md-4 hidden-xs" style="padding: 0px">
                                <ul class="dao-styll">
                                    <li class=""><a href="#">风格</a>
                                    </li>
                                    <li class=""><a href="#">造型师</a></li>
                                    <li class=""><a href="#">众分享</a>
                                    </li>
                                    <li class=""><a href="#">我的美丽衣橱</a></li>
                                </ul>
                            </div>
                            <div class="col-md-2">
                                <div class="imgs-styl">
                                    <img src="imges/sina.gif">
                                </div>
                                <div class="dz-styl">
                                    <a href="#" class="green-styl">登录</a>&nbsp;|&nbsp;
                                    <a href="#" class="zc-styl">注册</a>
                                </div>
                            </div>

                        </div>
                    </div>
                </div>
            </div>
        </div>
   <div class="row">
                <div class="visible-md"><h1>当前为桌面显示</h1></div>   //visible默认占满整行 
                <div class="visible-sm"><h1>当前为平面显示</h1></div>
                <div class="visible-xs"><h1>当前为手机显示</h1></div>
        </div>
    </div>
</body>
</html

 

 

 

Bootstrap 3

 

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