Template background has changed colour

Hi Cedric,
I was working on an article, putting in sliders and tabs.
After hitting save I went to the front end to view the changes and the template had changed to a black background, but only for that menu item.
Working in Google Chrome, I used 'inspect element' and it would appear that a place in the template called div.inner.clearfix now has a background: #393939.
I really have no idea how this changed, because I was just working in an article, and wasn't doing any template work.
Do you have any ideas how it may have happened and how I might fix it? I did have a look at the css.template file but really wasn't sure where I was looking.
223.130.25.180/~gbvicorg/index.php/about-gb-vic (it's a temporary URL while I am building the site).
Thanks very much.
Jenny

Hi

I really have no idea how this changed, because I was just working in an article, and wasn't doing any template work.

this tells to me that the problem is not from the template

check on another page where you have a simple content published if you have the same problem. If not, I think that you have a problem in the code of your article
CEd

Thanks for that Cedric.
I thought that too, but could see nothing in the code of the article.
Will investigate further.
Jenny