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How to position the table at the third indentation level? Thank you in advance. Greatings, Jan

\NeedsTeXFormat{LaTeX2e}
\documentclass[a4paper]{article}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\pagestyle{empty}

\begin{document}

\paragraph{sample.}\ \
Level 1
\begin{enumerate}
\item ...

Hi,
The program:
\documentclass[12pt,a4paper]{book}
\usepackage{xcolor}
\usepackage{lipsum}
\usepackage{setspace}
\renewcommand{\baselinestretch}{1.5}

\begin{document}
\lipsum[1]
{\setstretch{0.5}\color{blue}
\lipsum[2]
}
\lipsum[3]
\end{document}

gives under Ubuntu 18.04 a correct - expected ...

I recently changed from Xubuntu to Linux Mint 20. After the change, I'm facing difficulties with the "polish' option in the babel package. Here is the minimum sample:

\documentclass[11pt,a4paper]{article}
\usepackage[utf8]{inputenc}
\usepackage[polish]{babel}
\usepackage[T1]{fontenc}

\begin ...

I often need to create a table or picture in a list item. The result is that such a table or picture behaves as
if it were no part of the list and uses the whole pages textwidth.
What shall I do to solve this problem.
Best regards, Jan

Example:
\NeedsTeXFormat{LaTeX2e}
\documentclass[a4paper ...

I often need to create a table or picture in a list item. The result is that such a table or picture behaves as
if it were no part of the list and uses the whole pages textwidth.
What shall I do to solve this problem.
Best regards, Jan