How do I prevent \section from breaking vwcol?

Question

Here is a minimal example that works:

\documentclass{article}
\usepackage[english]{babel}
\usepackage{vwcol}
\usepackage{lipsum}

\begin{document}
  \begin{vwcol}[widths={0.6,0.4},sep=1.0cm,justify=flush,rule=0pt,indent=1em]
    \lipsum[1-3]
  \end{vwcol}
\end{document}

But when I add \section, things get messed up:

\documentclass{article}
\usepackage[english]{babel}
\usepackage{vwcol}
\usepackage{lipsum}

\begin{document}
  \begin{vwcol}[widths={0.6,0.4},sep=1.0cm,justify=flush,rule=0pt,indent=1em]
    \section{A Section Header}
    \lipsum[1-3]
  \end{vwcol}
\end{document}

My guess is that \section is somehow asserting its width (and thus the first column's width) across the whole page, while the second column continues to compute its width based on the erroneous first's.

How can I fix this?

Answer 1

Sorry, I'm not familiar with the package \usepackage{vwcol} what you are using, but if you want your text be in two column format, then you have some alternatives to meet the expactation.

Method 1

\documentclass[twocolumn]{article}
\usepackage[english]{babel}
\usepackage{lipsum}

\begin{document}

    \section{A Section Header}
    \lipsum[1-6]

\end{document}

Method 2

\documentclass{article}
\usepackage[english]{babel}
\usepackage{multicol,lipsum}

\begin{document}

\begin{multicols}{2}
    \section{A Section Header}
    \lipsum[1-6]
\end{multicols}

\end{document}

Answer 2

I ended up going with minipage. Unfortunately it meant manually splitting up the content between two columns, rather than flowing, but it works.

More information at Two-column list: different column widths.