I’ trying to figure out what happens using Firefox’s integrated web developer tool, but currently I’m stuck. The site isn’t finished yet, but you can find it here: bit.ly/1LEzd7g
What’s astonishing is that the classes “icon-pdf” etc. work just fine inside the div with the class “content-area”, so I added different class names to the child style.css to use it inside the footer area as well. I tried the ones mentioned in my first post and also “site-footer”, but none of the ones I tried worked.