%%% outline
%-------------------------------------------------------------------------
\begin{tikzpicture}



\begin{scope}[scale=1.0]
{

\node [anchor=north west,minimum width=7em, minimum height=2.5em,fill=blue!30](num1)  at (0,0) {$A$\quad \quad \quad \quad  };
\node [anchor=west,minimum width=7em, minimum height=5em,fill=ugreen!30](num2)  at ([xshift=-3em]num1.east) {\quad \quad $B$};
\node [anchor=west,minimum width=3em, minimum height=2.5em,fill=yellow!30](part1)  at (num2.west) {$C$};

\draw [-,thick] (num1.north west) -- (num1.north east) -- (num1.south east) -- (num1.south west) -- (num1.north west);
\draw [-,very thick,dotted] (num2.north west) -- (num2.north east) -- (num2.south east) -- (num2.south west) -- (num2.north west);

}
\end{scope}
\end{tikzpicture}
%---------------------------------------------------------------------