Best Answer Danny , 31 March 2013 - 07:37 AM
Unfortunately, we're unable to provide support for user created custom CSS/code. However, the Banners section wasn't mean't to be used to house a single image, instead the purpose of Banners is to display an image and text.
Therefore, you're using the wrong section if you wish to display an image. I think you would be best using the ContentBox section or the Full width Sidebar section instead.
One other tip, you should really use negative margins to position an element, as it can cause adverse effects interms of your layout. I would suggest using margin:auto;Go to the full post