\frame
Synopsis:
\frame{contents}
Puts a rectangular frame around contents. The reference point is the bottom left corner of the frame. In contrast to \framebox
(see \framebox (picture)), this command puts no extra space is put between the frame and the object. It is fragile (see \protect).
© 2007–2018 Karl Berry
Public Domain Software
http://latexref.xyz/_005cframe.html