<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
</head>
<style type="text/css">
body{font-size: 12px;}
#text{ 600px;height: 400px;border:1px solid #333333 ;padding: 5px;}
p{line-height: 18px;text-indent: 2em;}
</style>
<body>
<h2 id="con">js交互</h2>
<form>
<input type="button" value="改变颜色" onclick="changecolor()"/>
<input type="button" value="改变宽高" onclick="changewh()"/>
<input type="button" value="隐藏内容" onclick="changehide()"/>
<input type="button" value="显示内容" onclick="changeshow()"/>
<input type="button" value="取消设置" onclick="cancel()"/>
</form>
</body>
<script type="text/javascript">
//changecolor
function changecolor(){
var a1=document.getElementById("con");
a1.style.color="#FF0000";
}
function changewh(){
var a1=document.getElementById("txt");
a1.style.width="300px";
a1.style.height="300px";
}
function changehide(){
var a1=document.getElementById("con");
a1.style.display="none";
}
function changeshow(){
var a1=document.getElementById("con");
a1.style.display="block";
}
function cancel(){
var c=confirm("取消所有设置？");
if(c){
document.getElementById("txt").style.cssText="null";
}
}
</script>
</html>