# How to use paracol in beamer environment?

instead of using default beamer command columns I want to use paracol environment - to top-align columns.

But,

! LaTeX Error: Not in outer par mode.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
...

l.2 \begin{paracol}{2}


Is it fixable?

  \begin{frame}[fragile]{}
\begin{paracol}{2}
xxx
\switchcolumn
yyy
\end{paracol}
\end{frame}

• Paracol doesn't like being inside minipages either. IIRC, the column widths are computed in the preamble, not on the fly. – John Kormylo Sep 24 '19 at 13:28

If you just want to top align the contents of two columns in a beamer frame, then there is no need for paracols:

\documentclass{beamer}
\begin{document}
\begin{frame}[t]
\begin{columns}[t]
\begin{column}{0.5\textwidth}
xxx
\end{column}
\begin{column}{0.5\textwidth}
yyy

more text
\end{column}
\end{columns}
\end{frame}
\end{document}

• Thank you for reply - it is what I am looking for. But, frame t is unnecessary for me, and, there is last problem - how - make column text justified, like in paracol? – Lex Ushakov Sep 25 '19 at 5:48
• Regarding justifying text: text justify in beamer might be helpful. – leandriis Sep 25 '19 at 5:50
• Thanks. But, why paracol is not supported? Floats are usually easily insertable into the slides. – Lex Ushakov Sep 25 '19 at 6:45
• @LexUshakov: beamerdisables the floating behavious of floats. This is why you can use table and figure "as usual" but their contents are placed where they are used in the code. – leandriis Sep 25 '19 at 7:37