CMS Layout Problem

I made a small page (http://www.ovlu.li) using CMS Made Simple (http://www.cmsmadesimple.org/). It looks more or less okay in all br开发者_StackOverflow社区owser, but the problem is, if a resize the window to a smaller size, sometimes the layout of the subnavigation layer is destroyed. Instead of getting smaller, all the elements are ordered more or less randomly. Any hints why?

That is most likely because you are using a fixed width for the main container of your page. If you used the percentage instead, it should not behave that way. However, percent-based layouts are very rare.