Wanna learn something new? Ensure u know the prerequisites.

As a first step of learning ZF I've developed a simple blog after I've finished the quick start guide. Unfortunately, I did not care much about the RewriteEngine. So, when I tried to include an external css file I got an error saying

Invalid controller specified (css)

Now I tried creating

css/global.css

in my document root (with out any content). Even that did not help. As a final resort I tried putting some text into css/global.css And viola!! That worked.
If u are new to ZF I recommend to get the basics of mod_rewrite