multicols - different column widths

Question

How can I set the width of the 1st column to 70%, and the width of the 2nd column to 30% of the pagewidth?

\usepackage{multicol}

\begin{multicols}{2}
    text in column 1
    \columnbreak
    text in column 2
\end{multicols}

Answer 1

If you are just after a two-column document with varying column width, I would suggest to take a look at the flowfram package which allows to customize column layout and width. I used it for statistical handouts with text on a .7\textwidth column, and illustration on the remaining spaces (before discovering Tufte class), but I think it should not be too difficult to use it for two-column document with text only.