I'm looking for a way to draw a border on the top and left, but they should have different widths. I've been trying to do this using the mdframed package, but there doesn't seem to be an easy way to draw a border on the left that has a different width from the border at the top.
\documentclass{article}
\usepackage{mdframed}
\usepackage{lipsum}
\newmdenv[rightline=false,bottomline=false]{topbot}
\begin{document}
\begin{topbot}
\subsection*{This is the title}
\end{topbot}
\lipsum[2]
\end{document}
This is what I have:
And this is what I am looking for: