What also might be helpful:
To make it easier to see the new space you have and to place your cursor in it, go to line (at or about) line 150 of your page, and immediately after:
<div id="contentWrapper">
add the following line:
<div id="content_top" style="margin-left:20px; margin-right:20px; margin-bottom:10px;">Content for your top space Goes Here</div>