abstract:淘宝导航
*{margin: 0px;padding: 0px;}
a{text-decoration: none;font-size: 13px;}
li{list-style: none;}
.clear{clear: both;}
.header{width: 100%;background-color: #ccc;}
.header_content{width: 1200px;margin: 0px auto;line-height: 40px;}
.header_left{height: 40px;float: left;}
.header_left a{margin-right: 5px;}
.header_content a:hover{color: #FF5000;}
.header_right{width: 700px;height: 40px;float: right;}
.header_right a{margin-right: 5px;}
.header_a{display: inline-block;height: 40px;width: 90px;text-align: center;position: relative;}
.header_a:hover{background-color: #fff;}
.header_a ul{border: 1px solid #F5F5F5;display: none;border-top: none;}
.header_a:hover ul{display: block;position: absolute;}
.header_a ul li:hover{background-color: #F5F5F5;}
.header_a ul li{color: #6c6c6c;height: 30px;line-height: 30px;text-align: left;padding: 0px 3px;margin: 5px 0px;}
Correcting teacher:灭绝师太Correction time:2019-01-06 17:22:39
Teacher's summary:布局没毛病,建议:带有二级下拉菜单的导航不要用a链接嵌套,会造成代码冗余