1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 2 <html xmlns="http://www.w3.org/1999/xhtml"> 3 <head> 4 <meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> 5 6 <style type="text/css"> 7 8 9 #headNav {10 width:960px;11 height:30px;12 line-height:30px;13 background-color: lightblue;14 margin:0 auto;15 }16 17 #headNav ul {18 list-style:none;19 }20 21 #headNav ul li {22 float:left;23 height: 30px;24 line-height: 30px; 25 padding:0 10px;26 }27 28 #headNav ul li:hover {29 background-color: white;30 }31 32 a {33 color:red;34 text-decoration:none;35 }36 37 a:hover {38 39 }40 </style>41 42 </head>43 <body>44 <div id="headNav">45 <ul>46 <li><a href="#">首页</a></li>47 <li><a href="#">网页版式布局</a></li>48 <li><a href="#">div+css教程</a></li>49 <li><a href="#">div+css实例</a></li>50 <li><a href="#">常用代码</a></li>51 </ul>52 </div>53 </body>54 </html>注意：
①第12行即导航的div要设置其高度
