CSS浮动菜单
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>菜单</title>
<style type="text/css">
.menu{
width: 694px;
height: 50px;
/*去掉小黑点*/
list-style:none;
margin: 50px auto 0;
padding: 0;
}
.menu li{
width: 98px;
height: 48px;
border: 1px solid gold;
background-color: #fff;
/*display: inline-block; 转出行内块*/
float: left; /*浮动：去除换行、间距*/
margin-left: -1px;
}
/*a标签转换成块，设置宽高，扩大鼠标点击区域*/
.menu li a{
/*background-color: gold;*/
display: block;
width: 98px;
height: 48px;
text-align: center; /*水平居中*/
line-height: 48px; /*垂直居中*/
text-decoration: none; /*去掉下划线*/
font-size: 16px;
font-family: 'Microsoft Yahei';
color: pink;
}
/*选择鼠标指针浮动在其上的元素，并设置其样式*/
.menu li a:hover{
background-color: gold;
color: #fff;
}
</style>
</head>
<body>
<ul class="menu">
<li><a href="#">首页</a></li>
<li><a href="#">公司简介</a></li>
<li><a href="#">解决方案</a></li>
<li><a href="#">公司新闻</a></li>
<li><a href="#">行业动态</a></li>
<li><a href="#">招贤纳才</a></li>
<li><a href="#">联系我们</a></li>
</ul>
</body>
</html>
清除浮动
不设置高度时才会出现浮动
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css">
.list{
width: 210px;
/*height: 400px;*/
border: 1px solid #000;
/*处理ul标签三步骤*/
margin: 50px auto 0;
list-style: none;
padding: 0;
<!--
清除浮动:方法一
overflow: hidden;
-->
}
.list li{
width: 50px;
height: 50px;
background-color: gold;
margin: 10px;
float: left;
}
/*解决margin塌陷
.clearfix:before{
content: "";
display: table;
}
方法三推荐：伪元素是行内元素 正常浏览器清除浮动方法
.clearfix:after{
content: "";
display: table;
clear: both;
}
*/
/*margin塌陷和浮动一起解决*/
.clearfix:before, .clearfix:after{
content: "";
display: table;
}
.clearfix:after{
clear: both
}
/*兼容IE*/
.clearfix{
zoom:1;
}
</style>
</head>
<body>
<!--ul.list>li{$}*8-->
<ul class="list clearfix">
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
<li>6</li>
<li>7</li>
<li>8</li>
<!--
清除浮动:方法二 不推荐
<div style="clear:both"></div>
-->
</ul>
</body>
</html>
