# Space around theoremes

I have defined a `newtheorem` style and I want to shift the theoreme a little bit below from the rest, but I don't get it right. I have something like this :

``````\documentclass{book}

\usepackage{xcolor}
\usepackage{amsthm}

\newtheoremstyle{Marine}% name
{3pt}% Space above
{3pt}% Space below
{}% Body font
{}% Indent amount