以链接的形式调用外部CSS文件
<Head>
<link rel="stylesheet" type="text/css" href="Css.css" />
</Head>
<Head>
<link rel="stylesheet" type="text/css" href="Css.css" />
</Head>
或者直接将CSS写在页面中
<Head>
<style type="text/css">
<!--
body {
font-family: "宋体";
font-size: 12px;
font-style: normal;
line-height: normal;
font-weight: normal;
text-decoration: none;
}
-->
</style>