How does one framebox a proof?

Question

I am trying to frame box a proof I have written

For instance

\documentclass[11pt]{article}

\begin{document}
\framebox{ 

\emph{Proof} \\

 \text{content of proof goes here}

 }


 \end{document}

But the \ does absolutely nothing. All the text is squeezed together in the box

Answer 1

The answers provided at box around theorem statement by cmhughes should be useful. This is a slightly different layout which is taken and modified from the mdframed documentation.

\documentclass[11pt]{article}
\usepackage[framemethod=tikz]{mdframed}
\mdfdefinestyle{proofstyle}{%
linecolor=red,middlelinewidth=2pt,%
frametitlerule=true,%
apptotikzsetting={\tikzset{mdfframetitlebackground/.append style={%
shade,left color=white, right color=blue!20}}},
frametitlerulecolor=green!60,
frametitlerulewidth=1pt,
innertopmargin=\topskip,
}
\mdtheorem[style=proofstyle]{proof}{Proof}
 %% \mdtheorem[style=proofstyle]{proof}{\itshape Proof}

\begin{document}
\begin{proof}[Some heading]
content of proof goes here
\end{proof}

\bigskip
\begin{proof*}%%[Some heading]
content of proof goes here
\end{proof*}

 \end{document}

To remove colors, just comment out some lines like:

\mdfdefinestyle{proofstyle}{%
%linecolor=red,
middlelinewidth=1pt,%
frametitlerule=true,%
%apptotikzsetting={\tikzset{mdfframetitlebackground/.append style={%
%shade,left color=white, right color=blue!20}}},
%frametitlerulecolor=green!60,
frametitlerulewidth=.5pt,
innertopmargin=\topskip,
}