<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="txttent-Type" txttent="text/html;" />
<meta charset="utf-8">
<title>style样式</title>
<style type="text/css">
*{ font-size:12px;}
#txt{
height:400px;
width:600px;
border:#333 solid 1px;
padding:5px;
}
p{
line-height:18px;
text-indent:2em;}
</style>
</head>
<body>
<h2 id="con">JavaScript课程</H2>
<div id="txt">
<h5>JavaScript为网页添加动态效果并实现与用户交互的功能。</h5>
<p>1. JavaScript入门篇，让不懂JS的你，快速了解JS。</p>
<p>2. JavaScript进阶篇，让你掌握JS的基础语法、函数、数组、事件、内置对象、BOM浏览器、DOM操作。</p>
<p>3. 学完以上两门基础课后，在深入学习JavaScript的变量作用域、事件、对象、运动、cookie、正则表达式、ajax等课程。</p>
</div>
<form>
<input type="button" value="改变颜色" onClick="dcolor()">
<input type="button" value="改变宽高" onClick="dwh()">
<input type="button" value="隐藏内容" onClick="dh()">
<input type="button" value="显示内容" onClick="ds()">
<input type="button" value="恢复" onClick="dclear()">
</form>
<script type="text/javascript">
function dcolor(){
var mychar = document.getElementById("txt");
mychar.style.color="red";
mychar.style.backgroundColor="#ccc";
}
function dwh(){
var mychar = document.getElementById("txt");
mychar.style.width="400px";
mychar.style.height="200px";
}
function dh(){
var mychar = document.getElementById("txt");
mychar.style.display="none";
}
function dclear(){
if(confirm("确定要取消设置吗?")){
var mychar = document.getElementById("txt");
mychar.style.color="#000";
mychar.style.backgroundColor="#fff";
mychar.style.width="600px";
mychar.style.height="400px";
mychar.style.display="block";
}
}
function ds(){
var mychar = document.getElementById("txt");
mychar.style.display="block";
}
</script>
</body>
</html>
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