<!DOCTYPE html> <!--申明版本号：html5-->
<html>
<head>
<title>test</title>
<meta charset="utf-8"> <!--设定字符编码:utf-8-->
<style> /*css*/
.classname{
......
}
#idname{
......
}
</style>
<script> //javascript [ 多行注释：/*.......*/]
......
</script>
</head>
<body>
</body>
</html>