SOURCE

<div id="header">我是页面头部</div>

body {
		perspective:100; 
		-webkit-perspective:100; /* Safari and Chrome */
	  height:990px;
}
#header {
	position:fixed;
	top:0;
	width:100%;
	background-color:black;
	color:#FFF;
	height:45px;
	line-height:45px; 
	text-align:center; 
}