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导航条出现一个错

导航条出现一个错

慕仙6733315 2016-12-09 10:49:06
<!DOCTYPE html><html> <head> <meta charset="utf-8" /> <title></title> <link rel="stylesheet" type="text/css" href="css/index.css"/> <script type="text/javascript" src="js/index.js"></script> </head> <body> <div id="top"> <div class="search"> <div class="engine"> <input type="text" class="txt" /> <div class="search_logo"> <img src="img/search.png" alt="" /> </div> </div> <div class="radio_1"> <input type="radio" class="sex" value=""/> <span>搜索本站</span> </div> <div class="radio_2"> <input type="radio"  class="sex"  value="" /> <span>搜索全站</span> </div> </div></div> <div id="header"> <div id="header_content"> <div class="header_logo"> <img src="img/logo.png" alt="" /> </div> <div class="header_menu  fr"> <ul> <li class="earth"><span >Language: ZH</span></li> <li>学生</li> <li>教师</li> <li>校友</li> <li>考生</li> <li><img src="img/sea.png" alt="" /></li> </ul> </div> </div> </div> <div id="nav"></div> <div id="banner"></div> <div id="content"></div> <div  id="footer"></div> </body></html>  CSS如下:/*公共样式*/body,html{padding: 0; margin: 0; font-family: "微软雅黑"; }li{list-style: none;}a{text-decoration: none;}.fl{float: left;}.fr{float: right;}/*布局样式*//*头部*/#top{width:100%; height: 0; overflow: hidden;} #top .search{width: 800px; height: 150px; margin: 0 auto ; } #top .txt{width:634px;height: 48px;} #top .engine{width: 686px; height: 48px; position: relative; top:50px; left: 0;} #top .search_logo{width: 50px; height: 54px; background: #0000FF; position: absolute;right:2px; top:0;} #top .search_logo img{margin-left: 15px; margin-top: 15px;} #top  span{color: #c6c6c6;} #top .radio_1, #top .radio_2{width: 90px; height: 13px; float: right;clear: both; margin-bottom:18px;} #top .radio_2{}/*header*/#header{width: 100%; height: 140px; background: url(../img/top-site-bg.jpg);}#header #header_content{width: 1190px; height: 140px; margin: 0 auto;position: relative;}#header .header_logo{width: 400px; height: 76px; position: absolute; top:35px;}#header .header_menu{ height: 140px; background: red;}#header .header_menu ul{ width:564px;margin-top:62px;}#header .header_menu li{float: left; margin-right: 40px;}#header .earth{width:154px;height:18px; text-align:center; line-height:18px;background: url(../img/earth.png)no-repeat left; }#header .earth span{display: block; background: url(../img/in_01.png)no-repeat right;}
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杰杰就是我

TA贡献32条经验 获得超24个赞

因为你UL没有进行 reset操作   

ul{
    margin:0;
    padding:0;
}

即可

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反对 回复 2016-12-09
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