I'm trying to surround a tabular with a thick frame:
\setlength\fboxrule{2pt}
\setlength{\fboxsep}{0pt}
\fcolorbox{black}{gray}{
\begin{tabular}{@{}p{2cm}|p{2cm}@{}}
A & B \\ \hline
C & D \
\end{tabular}
}
Although I set \fboxsep to 0pt and use @{}, there is still some horizontal margin between the frame and the tabular:
http://flyx.org/files/framedtabular.png
I want the horizontal line to reach the frame at both ends. How can I achieve that?

\afterDlooks wrong. – David Carlisle Jan 30 '14 at 11:03