Help me with my tumblr theme, moving the description.

Hello,
so I'm having my blog for some months now and I wanted to try a new theme but I'm not a specialist so I can't move the description box from the top to the right. Can you help me, please? Here's my blog:
http://sparkle-ici-ous.tumblr.com
and here's my html-Code:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 
<!--
     Theme: The Minimalist v1.
     Design: The Minimalist (<a href="http://minimalist.co" rel="nofollow">http://minimalist.co</a>)
-->
 
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>

Syndicate content