<!DOCTYPE html>
<html lang="zh-cn">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1,maximum-scale=1,user-scalable=no" />
<title>栅格系统</title>
<link href="css/bootstrap.min.css" rel="stylesheet">
<style>
.a{
background-color: antiquewhite;
border: 1px solid chartreuse;
height: 50px;
}
</style>
</head>
<!--Bootstrap的栅格系统，提供了一套响应移动设备优先的流式栅格系统
栅格系统中，浏览器会随着屏幕的大小的增减自动分配最多12列
-->
<!--
移动优先
//屏幕宽度和设备一致 ，初始缩放比例，最大缩放比例和禁止用户缩放
<meta name="viewport" content="width=device-width, initial-scale=1,maximum-scale=1,user-scalable=no" />
-->
<!--
container 容器
container-fluid 全屏幕100%
四种屏幕：<768px 超小屏幕 col-xs
>=768px min-width 750px平板 col-sm
>=992px min-width 970px中等屏幕 col-md
>=1200px min-width 1170px大屏幕 col-lg
-->
<div class="container-fluid">
<div class="row">
<div class="col-md-1 a">1</div>
<div class="col-md-1 a">2</div>
<div class="col-md-1 a">3</div>
<div class="col-md-1 a">4</div>
<div class="col-md-1 a">5</div>
<div class="col-md-1 a">6</div>
<div class="col-md-1 a">7</div>
<div class="col-md-1 a">8</div>
<div class="col-md-1 a">9</div>
<div class="col-md-1 a">10</div>
<div class="col-md-1 a">11</div>
<div class="col-md-1 a">12</div>
</div>
<div class="row">
<div class="col-md-4 a">10</div>
<div class="col-md-4 a">11</div>
<div class="col-md-4 a">12</div>
</div>
<div class="row">
<div class="col-md-9 a">10</div>
<div class="col-md-3 a">11</div>
</div>
</div>
<div class="container">
<div class="row">
<div class="col-lg-3 col-md-4 col-sm-6 col-xs-12 a">1</div>
<div class="col-lg-3 col-md-4 col-sm-6 col-xs-12 a">2</div>
<div class="col-lg-3 col-md-4 col-sm-6 col-xs-12 a">3</div>
<div class="col-lg-3 col-md-4 col-sm-6 col-xs-12 a">4</div>
<div class="col-lg-3 col-md-4 col-sm-6 col-xs-12 a">5</div>
<div class="col-lg-3 col-md-4 col-sm-6 col-xs-12 a">6</div>
<div class="col-lg-3 col-md-4 col-sm-6 col-xs-12 a">7</div>
<div class="col-lg-3 col-md-4 col-sm-6 col-xs-12 a">8</div>
</div>
</div>
<!--
列偏移 col-md-offset-
嵌套 注意去除外边距
col-md-push- 左移动
col-md-pull- 右移动
-->
<div class="container">
<div class="row">
<div class="col-md-8 a">8</div>
<div class="col-md-3 col-md-offset-1 a">3</div>
</div>
<div class="row" >
<div class="col-md-9 a" style="padding: 0;">
<div class="col-md-3 a">1</div>
<div class="col-md-3 a">2</div>
<div class="col-md-3 a">3</div>
<div class="col-md-3 a">4</div>
</div>
<div class="col-md-3 col a">3</div>
</div>
<div class="row">
<div class="col-md-8 col-md-push-4 a">8</div>
<div class="col-md-4 col-md-pull-8 a">4</div>
</div>
</div>
<!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->
<script src="http://cdn.bootcss.com/jquery/1.11.1/jquery.min.js"></script>
<!-- Include all compiled plugins (below), or include individual files as needed -->
<script src="js/bootstrap.min.js"></script>
</body>
</html>
