<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<link rel="stylesheet" type="text/css" href="css/reset.css"/>
<style type="text/css">
.test1{
-moz-tab-size:4;tab-size:4;/*明白了，默认是八个，设置成四个了*/
}
.test2{
-moz-tab-size:16;tab-size:16;/*16个空格，建议火狐里面看，兼容了呀*/
}
</style>
</head>
<body>
<pre>with no tab
with 1 tab
with 2 tab
</pre>
<pre class='test1'>with no tab
with 1 tab
with 2 tab
</pre>
<pre class='test2'>with no tab
with 1 tab
with 2 tab
</pre>
</body>
</html>
