<div id="main"> ? ?<div class="left"> <dl> <dt>CSS 基礎教程</dt> <dd class="current"><a href="#">CSS 簡介</a></dd> <dd><a href="#">CSS 高級語法</a></dd> <dd><a href="#">CSS 創建</a></dd> <dd><a href="#">css 派生選擇器</a></dd> </dl></div>*{ margin:0; padding:0; font-size:12px; font-family:"宋體"; color:#333}a{ text-decoration:none}a:hover{ text-decoration:underline; color:#ff0000;}.left{ ?width:180px; padding-bottom:10px;}.left dl{ padding:0 0 5px; }.left dt{ background:#0099CC; color:#FFFFFF; line-height:24px; padding:5px 0 5px 15px; font-weight:normal; font-weight:bold; margin-bottom:10px; font-size:16px; font-family:"微軟雅黑";}.left dd{ line-height:22px; padding-left:15px;}.left dd.current a{ color:#FF0000}