\begin{tikzpicture} \definecolor{variablecolor}{named}{cyan} \draw (-2,-2) rectangle (2,2); % Script {{{ \begin{scope}[shift={(-0.5,1.25)}] \node[draw=black,rounded corners=5] (code) at (0,0) {\texttt{> {\color{variablecolor}x} = 0.025;}}; \end{scope} % }}} % Document {{{ \begin{scope}[shift={(1,-0.75)}, scale=1.25] \draw (0.2,0.705) -| (-0.5,-0.705) -| (0.5,0.405) -- cycle; \draw[line width=2] (-0.4,0.5) -- (0.2,0.5); \draw[thick] % (-0.4,0.3) -- (0.4,0.3) % (-0.4,0.1) -- (0.4,0.1) % (-0.4,-0.1) -- (0.4,-0.1) % (-0.4,-0.3) -- node[inner sep=1.5,circle,midway,variablecolor,draw=black,fill=white](variable) {\(x\)} (0.4,-0.3) % (-0.4,-0.5) -- (0.4,-0.5) % ; \end{scope} % }}} \draw[thick,-stealth, shorten >=10, variablecolor] (code.-160) |- (variable); \end{tikzpicture}