<!DOCTYPE html>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib uri="http://java.sun.com/jstl/core" prefix="c"%>
<%
String path = request.getContextPath();
%>
<html>
<head>
<meta charset="utf-8">
<title>...</title>
<link rel="stylesheet" href="<%=path %>/static/layui/css/layui.css" media="all"/>
<style>
body{ margin:0; height:100%}
html{ height:100%} /*兼容firefox的div高度100%*/
#left{ position:absolute; top:0; left:0; width:50%; height:100%; background-color:#CCCCCC}
#right{ margin-left:200px; height:100%; background-color:#0099FF}
</style>
</head>
<body>
<div id="left">
</div>
<div id="right">
</div>
</body>
</html>
![](https://images2018.cnblogs.com/blog/1427635/201808/1427635-20180809104930837-1686046405.png)