老师，这是哪里错了

源自：3-15 企业网站制作之课程中心制作

老师，这是哪里错了

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<img src="images\news.jpg"/><h2><a href="news.html">520慕女神喊你来表白！</a></h2><p>活动时间5.25-5.30<br/>
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<img src="images\css.jpg"/><h2>项目列表设计：</h2><p>1.将重复的属性放在同一个class里
<br/> 2.属性写在一组,用逗号隔开应用这些属性的选择器。</p>
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margin: 0;padding: 0;font-size: 12px;
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.top_content{
width:1000px;
margin:0 auto;
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.top_content li{
list-style-image: url(images/li_bg.gif);float: right;width: 70px;
line-height: 27px; /*在盒子中垂直居中*/
}
.top_content a:link,.top_content a:visited{/*初始状态和访问之后状态的样式*/
color:#8e8e8e;
text-decoration:none;
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.top_content a:hover,.top_content a:active{
color:#900;
text-decoration:none;
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.wrap{
width:1000px; margin: 0 auto;
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.logo{
height:80px;
background-color: #fff;
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.logo_left{
width: 200px;
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.tel{
font-family: 微软雅黑;
font-size: 16px;
color:#C00;
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height:40px;width:1000px;
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.nav_left{
width:10px;
background:url(images/nav_left.jpg) no-repeat;
/* background-image: url(images/nav_left.jpg);
background-repeat: no-repeat;与上面等效*/
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height:40px;*/
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width:980px;background:url(images/nav_bg.jpg)repeat-x;
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float:left;
height:40px;/*把上面的参数都写到这里*/
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float:left;
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width:680px;
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font-family: "微软雅黑";
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font-family: "微软雅黑";
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padding-right:25px;/*避免输入文字时，文字压到搜索符号*/
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float:left;
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.news,.course,.sidebar{
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.title{
height:35px;border-bottom:2px solid #e8e8e8;
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width:70%;
font_family:"微软雅黑";
font_size:14px;
font-weight:bold;
color:#786f66;
float:left;
line-height:35px;/*与title高度相同，垂直居中*/
padding-left: 20px;
}
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width:20%;
float:right;
line-height:35px;
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.title_right a{
text-decoration:none;
color:#999999;
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.pic_news{
height:80px;
margin-top:10px;
line-height: 22px;
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.pic_news img{
float:left;
margin:0 5px;
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.pic_news a{
color:#c00;
text-decoration:none;
}
.news_list{
margin-top:20px;
}
.news_list a{
font-size: 13px;/*时间被挤下去解决*/
}
.news_list li{
list-style-type: none;
background:url(images/list.jpg)no-repeat;/*加载左边箭头的方式之一*/
padding-left: 10px;
margin:8px 8px;/*li的上下左右距离均为8px;*/
border-bottom: 1px dotted #ccc;

}
.news_list a:link,.news_list a:visited{
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color:#000;
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.news_list a:hover,.news_list a:active{
text-decoration:none;
color:#f00;
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.news_list span{/*等效于.date*/
color:#999;
float:right;
margin-top: -20px;/*1时间被挤下去解决 2span时间标签与文字互换位置也可以解决*/
}

提问者：慕粉3316703 2016-05-08 10:49

老师，这是哪里错了

个回答