Odd position problems

On my website, the positioning for this one element, class named “paragraph”, is fine on Chrome, but for any other page, it’s at the very top. When I try to position it better, it won’t go where I want it to, it just flies to the bottom. Could someone tell me why? The link is here:
www.polymedsci.com

Thanks

look at this snippet


   		  	    </div><!-- #EndLibraryItem -->
            </div>
	</body>
</html>

the last closing </div>, below endlibrayitem, has no opening equivalent. So start by deleting that.

At line 86 you have a stylesheet <link href=“style1.css” rel=“stylesheet” type=“text/css”> this is a duplicate of the original style sheet already present in the head.
So delete that bit at line 86