栅格系统列组合代码演示
代码如下
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>Bootstrap列组合</title>
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0"/>
<link rel="stylesheet" href="css/bootstrap.min.css"/>
<style>
body{
margin-top: 20px