Alignment of @code and @verbatim section
When having a code and a verbatim section the boxes are not alligned, this patch fixes this.
Example code, aa.c; standard Doxyfile:
/** \file

\verbatim
A verbatim part
\endverbatim

\code
A code part
\endcode
*/
Merge pull request #41 from albert-github/feature/align_css

Alignment of @code and @verbatim section