li高度设置无效的问题
设置li元素的高度无效的解决办法就是为li加入:overflow:hidden;
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style type="text/css">
ul{
list-style:none;
float:left;
}
li{
overflow:hidden; /*解决高度设置无效的问题*/
float:left;
width:12px;
height:12px;
background:red;
margin-right:4px;
}
</style>
</head>
<body>
<ul>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
</ul>
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style type="text/css">
ul{
list-style:none;
float:left;
}
li{
overflow:hidden; /*解决高度设置无效的问题*/
float:left;
width:12px;
height:12px;
background:red;
margin-right:4px;
}
</style>
</head>
<body>
<ul>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
</ul>
</body>
</html>