\makeatletter
\renewcommand{\section}{\@startsection{section}{12}
{0mm} % Einzug
{1.5\baselineskip} % Vorabstand
{0.7\baselineskip} % Nachabstand
{\large\scshape\hrule\vspace{0.8\baselineskip}}}
\makeatother

\newcommand{\entrylabel}[1]{\mbox{#1}\hfil}
\newenvironment{CV}
  {\begin{list}{}
    {\renewcommand{\makelabel}{\entrylabel}
    \setlength{\labelwidth}{77pt}
    \setlength{\leftmargin}{84pt}
  }}
  {\end{list}
}