# Long label for a tikz picture (Having multiple line label for a tikz shape)

I have trouble making a tikz picture label break into couple lines. Here is specific MWE:

    \documentclass{article}

\usepackage[latin1]{inputenc}
\usepackage{tikz}
\usetikzlibrary{shapes,arrows}
\begin{document}
\tikzstyle{action} = [
rectangle, draw,
fill=blue!20,
text width=6em,
node distance=3cm,
text centered
]

\begin{tikzpicture}[scale=2, auto]
% Place nodes
\node [
action,
label=below:Computer: (0 min)
]
\node [
action,
text width=10em,
node distance=4cm,
label=below: hey this is a big\\label; what should i do to break it?
]
(identify) {I am a big process name};
\end{tikzpicture}
\end{document}


As you can see, tikz doesn't break the line. Am I missing something?

-
The label behaves like a normal node: Line wrapping only works if you specify the alignment option (like align=center). In this case, you can use label={[align=center]below: hey this is a big\\label; what should i do to break it?}, or you can set the alignment option for all of your labels using every label/.append style={align=center} –  Jake Dec 30 '12 at 20:58
@Jake sounds like an answer :) –  cmhughes Dec 30 '12 at 21:22
yeah, can you please write it as an answer? It works thank you :) –  N Nik Dec 30 '12 at 21:29

The label behaves like normal nodes: Line wrapping only works if you specify the alignment option (like align=center), in which case you can manually break the lines using \\, or by specifying a text width, in which case the text will automatically wrap around.
For labels, you can use label={[align=center]below: hey this is a big\\label; what should i do to break it?}, or you can set the alignment option for all of your labels using every label/.append style={align=center}.