以下是CSS内容部分：

以下为引用的内容： <style> /* www.tc-21.com 天诚世纪*/ body{ font-size:12px; text-align:center; margin-top:30px; font-family:Verdana;} div,img{margin:0; padding:0; border:0;} ul,li{list-style-type: none; margin:0; padding:0; float:left; } #info{ margin-left:auto; margin-right:auto;width:760px; text-align:left;} #new{ margin-top:-12px;position: absolute;margin-left:-12px;} #nav{ height:30px; width:610px; margin-left:auto; margin-right:auto;} #nav li{margin-left:1px; height:30px;} #nav li a{ display:block;float:left; text-decoration:none; background-image: url(/ITCenter/UploadFiles_2217/200907/20090715144544776.gif);background-repeat: no-repeat; display:block; background-position:left top;} #nav a span{cursor:hand; color:#000;background-image: url(/ITCenter/UploadFiles_2217/200907/20090715144545266.gif);background-repeat: no-repeat; display:block;background-position: right top; padding:7px 10px 6px 10px; float:left; } #nav li a:active,#nav li a:hover {margin-top:0px; } #nav li a:active span,#nav li a:hover span {padding:10px 10px 6px 10px; margin-top:0px; display:block; color:#FFF;} #tc21_01 a:link,#tc21_01 a:visited {background-position: 0px -27px;} #tc21_01 a:link span,#tc21_01 a:visited span{background-position:right -27px;padding:10px 10px 6px 10px; margin-top:0; color:#FFF; font-weight:bold;} #tc21_02 a,#tc21_03 a,#tc21_04 a,#tc21_05 a,#tc21_06 a,#tc21_07 a,#tc21_08 a,#tc21_09 a,#tc21_10 a,#tc21_11 a{margin-top:3px;} #tc21_02 a:active,#tc21_02 a:hover {background-position: 0px -57px;} #tc21_02 a:active span,#tc21_02 a:hover span{background-position:right -57px;} #tc21_03 a:active,#tc21_03 a:hover {background-position: 0px -87px;} #tc21_03 a:active span,#tc21_03 a:hover span{background-position:right -87px;} #tc21_04 a:active,#tc21_04 a:hover {background-position: 0px -117px;} #tc21_04 a:active span,#tc21_04 a:hover span{background-position:right -117px;} #tc21_05 a:active,#tc21_05 a:hover {background-position: 0px -147px;} #tc21_05 a:active span,#tc21_05 a:hover span{background-position:right -147px;} #tc21_06 a:active,#tc21_06 a:hover {background-position: 0px -177px;} #tc21_06 a:active span,#tc21_06 a:hover span{background-position:right -177px;} #tc21_07 a:active,#tc21_07 a:hover {background-position: 0px -207px;} #tc21_07 a:active span,#tc21_07 a:hover span{background-position:right -207px;} #tc21_08 a:active,#tc21_08 a:hover {background-position: 0px -237px;} #tc21_08 a:active span,#tc21_08 a:hover span{background-position:right -237px;} #tc21_09 a:active,#tc21_09 a:hover {background-position: 0px -267px;} #tc21_09 a:active span,#tc21_09 a:hover span{background-position:right -267px;} #tc21_10 a:active,#tc21_10 a:hover {background-position: 0px -297px;} #tc21_10 a:active span,#tc21_10 a:hover span{background-position:right -297px;} #tc21_11 a:link span,#tc21_11 a:visited span{color:#FF6600;} #tc21_11 a:active,#tc21_11 a:hover {background-position: 0px -327px;} #tc21_11 a:active span,#tc21_11 a:hover span{background-position:right -327px;} #menu{ width:760px; height:26px; background:#FF9900;} #r1{border-top: 0px;border-bottom: 0px; border-left:3px solid #fff;border-right:3px solid #fff; height:1px; overflow:hidden;} #r2{border-top: 0px;border-bottom: 0px; border-left:2px solid #fff;border-right:2px solid #fff; height:1px; overflow:hidden;} #r3{border-top: 0px;border-bottom: 0px; border-left:1px solid #fff;border-right:1px solid #fff; height:1px; overflow:hidden;} </style>

以下为内容部分

以下为引用的内容： <div id="info"> <div id="nav"> <ul> <li id="tc21_01"><a href="http://www.tc-21.com"><span>首页</span></a></li> <li id="tc21_02"><a href="http://www.tc-21.com"><span>数码通讯</span></a></li> <li id="tc21_03"><a href="http://www.tc-21.com"><span>女人</span></a></li> <li id="tc21_04"><a href="http://www.tc-21.com"><span>男人</span></a></li> <li id="tc21_05"><a href="http://www.tc-21.com"><span>家居</span></a></li> <li id="tc21_06"><a href="http://www.tc-21.com"><span>书籍音像</span></a></li> <li id="tc21_07"><a href="http://www.tc-21.com"><span>运动</span></a></li> <li id="tc21_08"><a href="http://www.tc-21.com"><span>游戏</span></a></li> <li id="tc21_09"><a href="http://www.tc-21.com"><span>宠物</span></a></li> <li id="tc21_10"><a href="http://www.tc-21.com"><span>香港街</span></a></li> <li id="tc21_11"><a href="http://www.tc-21.com"><span>淘宝商城</span></a></li> <li><div id="new"><img src="/ITCenter/UploadFiles_2217/200907/20090715144545968.gif" alt="新加栏目" /></div></li> </ul> </div> <div id="menu"> <div id="r1"></div> <div id="r2"></div> <div id="r3"></div> <div></div> </div> </div>