\documentclass[11pt,]{article}
\usepackage{titlesec}
\titleformat{\section}[leftmargin]{\normalfont
\titlerule*[.6em]{\bfseries.}%
\vspace{6pt}%
\sffamily\bfseries\filleft}
{\thesection}{.5em}{}
\titlespacing{\section}
{8pc}{1.5ex plus .1ex minus .2ex}{1pc}
\begin{document}
\section{This is a section heading}
\begin{enumerate}
\item This is the first item and it is too low on the page...
\item This is another item
\item This is another item
\item This is another item
\item This is another item
\item This is another item
\item This is another item
\end{enumerate}
\section{This is a section heading}
This paragraph is fine ...
\end{document}
Warum erhalte ich vor einer Liste zusätzlichen vertikalen Platz, aber nicht vor einem Absatz?