![]() |
#2
月暗2013-09-04 21:25
|

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www. xmlns="http://www. http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style type="text/css">
.m {
text-align: center;
}
</style>
</head>
<body>
<span class="m">悬崖之树</span>
</body>
</html>
<title>无标题文档</title>
<style type="text/css">
.m {
text-align: center;
}
</style>
</head>
<body>
<span class="m">悬崖之树</span>
</body>
</html>
为什么 <span> 标签无法用css样式?