<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>two</title>
<link rel="stylesheet" type="text/css" href="styles.css">
<style type="text/css">
div{
background-color:red;
width:250px;
height:250px
}
</style>
<script type="text/javascript">
function changeColor(){
var myDiv=document.getElementById("myDiv");
myDiv.style.backgroundColor="blue";
}
</script>
</head>
<body>
<div id="myDiv" onclick="changeColor();">
</div>
</body>
</html>
改变 页面中元素的样式