\documentclass{scrartcl} \usepackage{coseoul} \begin{document} \levelstay{The first section} This is a blind text. This is a blind text. This is a blind text. This is a blind text. \leveldown{A subsection} This is a blind text. This is a blind text. This is a blind text. \leveldown{A subsubsection} This is a blind text. This is a blind text. \levelup{Another section} This is a blind text. This is a blind text. This is a blind text. This is a blind text. \levelstay{Yet another section} This is a blind text. This is a blind text. This is a blind text. This is a blind text. \end{document}