【HTML】html结构，html5结构

<!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>标题部分-www.divcss5.com</title> 
<meta name="keywords" content="关键字" />  
<meta name="description" content="本页描述或关键字描述" /> 
</head> 
<body>

<!DOCTYPE html>
<html lang="en">
<meta charset="utf-8">
<meta name="keywords" content="" />
<meta name="description" content="" />
<head>
	<title>UEHTML</title>
</head>

<body>