2.18学习
<!DOCTYPE html>
<html> <head>
<meta charset="utf-8"> <title>菜鸟教程(runoob.com)</title> </head>
<body>
<div id="container" style="width:500px">
<div id="header" style="">
<h1 style="margin-bottom:0;">主要的网页标题</h1></div>
<div id="menu" style="height:200px;width:100px;float:left;">
<b>菜单</b><br> HTML<br> CSS<br>
JavaScript</div> <div id="content" style="height:200px;width:400px;float:left;"> 内容在这里</div> <div id="footer" style="clear:both;text-align:center;"> 版权 © runoob.com</div> </div> </body> </html>