* {
	margin: 0;
}
html, body {
	height: 100%;
	overflow: auto;
}
.wrapper {
	position: relative;
	width: 100%;
	height: 100%;
	overflow: auto;
}
.box {
	position: fixed;
	left: 50%;
	top: 180px;
	margin: 0 0 0 -370px;
}
* html .box { 
	position: absolute;
}

/*

Fixed Positioning in IE6 
http://ryanfait.com/

*/