I'm trying to define a size for the arrowhead of a style, like this:
\begin{tikzpicture} [line/.style={draw, ->, >=stealth, arrowhead=1cm}]
% define nodes
...
% define links
\path[line] (node1) -- (node2)
...
\end{tikzpicture}
However, tikz complains that it does not understand arrowhead inside style definition. What is the correct syntax for customizing the arrowhead of a style?
P.S. I looked at the answers in Is it possible to change the size of an arrowhead in TikZ/PGF?, but none of them customizes the arrow head inside a style.