title: thumbnail image in prestashop 1.6 is not in position
body: <p>i have installed prestashop 1.6 in my site at dtopengdistro.com
  I have added category thumbnail image. I do not change anything from default page from prestashop.
  The thumbnail image at top horizontal menu should be located at the bottom. But, when I added the thumbnail, it located on the right side.
  I have tried to configure /mytheme/css/module/blocktopmenu/css/superfish-modified.css, but its not work.
  try to edit module/blocktopmenu/blocktopmenu.php is not work too.
  So, how can I make the thumbnail of category image located at the bottom like prestashop default page after installation?</p>