\input{preamble-standalone.ltx}
\begin{document}
% Ex. No. 107 (Section 16.1.3 : Text with a period)
\begin{tikzpicture}
\tkzInit[ymax=5,xmax=6]
\tkzAxeXY
\tkzDefPoint(3,3){A}
\tkzText[draw,opacity=.6,
inner sep=.6 cm,
line width = 1pt,
color = black,
fill = purple!20](A)
{My text}
\end{tikzpicture}
\end{document}