two columns with a vertical line between two columns using parallel package

Question

I am wondering how it is possible to write in two columns which are separated with a vertical line and I wanna use the parallel package. Thanks

Answer 1

Option v of environment Parallel adds vertical line between left- and right-columns, see the documentation of parallel, sec. 1.2.

\documentclass{article}
\usepackage{parallel}

\begin{document}
\begin{Parallel}[v]{.45\linewidth}{.45\linewidth}
\ParallelLText{<left-text>}
\ParallelRText{<right-text>}
\ParallelPar
\ParallelLText{<left-text>}
\end{Parallel}
\end{document}