Oops, that's supposed to be inside out: \begin{figure}[ht] \begin{center} ... \end{center} \end{figure} Not sure it works the way I first suggested.

Oops, that's supposed to be inside out: \begin{figure}[ht] \begin{center} ... \end{center} \end{figure} Not sure it works the way I first suggested. Apologies.