Untitled

<!doctype html>
<head>
    <style type="text/css">
	body { padding:150px 0 0; }
	#wrapper {
	    width:760px;
	    margin:0 auto;
	    position:relative;
	    overflow:hidden;
	    border:5px solid #ddd;
	}

	#around-content {
	    float:left;
	    width:100%;
	    background:red;
	}

	#nav {
	    position:absolute;
	    top:5px; left:5px;
	    background:blue;
	}
    </style>
</head>
<div id=wrapper>
    <div id=around-content>
	<div id=content>
	this is some.. content..<br>
	this is some.. content..<br>
	this is some.. content..<br>
	this is some.. content..<br>
	this is some.. content..<br>
	</div>
    </div>

    <div id="nav">
	nav!
    </div>
</div>