代码编辑器：
x
1
2
<meta charset="utf-8">3
<link href="/static/next/css/tryit.css?v=2017082407" rel="stylesheet"/>4
<script src="https://cdn.staticfile.org/jquery/2.2.4/jquery.min.js"></script>5
<script>6
$(document).ready(function(){7
$("button").click(function(){8
$("#div1").width(500).height(500);9
});10
});11
</script>12
<div id="div1" style="height:100px;width:300px;padding:10px;margin:3px;border:1px solid blue;background-color:lightblue;"></div>13
<br>14
<button>重置 div 大小</button>15
<footer>简单教程，简单编程<br/>Copyright © 简单教程 www.twle.cn</footer>16