abstract：<!DOCTYPE html><html><head><meta charset="UTF-8"><title>Document</title><meta charset="UTF-8"><title>DOM实战:模拟智能在线客服系统</title>&
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Document</title>
<meta charset="UTF-8">
<title>DOM实战:模拟智能在线客服系统</title>
<style type="text/css">
div:nth-child(1) {width: 450px;height: 650px;background-color: lightskyblue;margin: 30px auto;color: #333;
box-shadow: 2px 2px 2px #808080;}
h2 {text-align: center;margin-bottom: -10px;}
div:nth-child(2) {width: 400px;height: 500px;border: 4px double green;background-color: #efefef;margin: 20px auto 10px;}
ul {list-style: none;line-height: 2em;/*border: 1px solid red;*/
overflow: hidden;padding: 15px;}
table {width: 90%;height:80px;margin: auto;}
textarea{ /*width: 300px;*/
border: none;resize: none;background-color: lightyellow;}
button {width: 60px;height: 40px;background-color: seagreen;color: white;border: none;/*text-align: left;*/ }
button:hover {cursor: pointer;background-color: orange;}
</style>
</head>
<body>
<div>
<h2>在线客服</h2>
<div contenteditable="true">
<ul>
<li></li>
</ul>
</div>
<table>
<tr>
<td><textarea cols="50" rows="4" name="text"></textarea></td>
<td><button type=button>发送</button></td>
</tr>
</table>
</div>
</body>
</html>
Correcting teacher：西门大官人Correction time：2019-02-17 09:22:11
Teacher's summary：<div contenteditable="true">是一个可以输入文字的div，那么下面又加了一个textarea作用是什么？