
I couldn't find an email address to contact about this, so am posting it here.
The
www.django-cms.org site doesn't set an explicit background color for the body element, so therefor browsers render the page background color as whatever the user has defined as their default background color. I use light blue, for example. The problem is that the page is clearly designed to use white as a background color.
Of course many users won't have changed their web browser's default setting (which is usually white) but those that have won't see the intended design. Quite a few sites on the web have this problem. (I've even seen this mistake on the homepages of web design companies, which is a nice way of letting me know immediately that I should trust my design work to another firm.)
Anyway, to fix this problem just add the following line to the CSS file:
body {background-color:#FFF}