Make tikz image span paper width [duplicate]

I would like a tikz picture to move over to the left so it is touching the edge of the page.

Here is my code:

\begin{figure}
\resizebox{\paperwidth}{!}{
\begin{tikzpicture}
\fill[black!50!blue] (-10, 1) rectangle (10, 2);
\fill[black!50!blue] (-5, 0) rectangle (5, 3);
\end{tikzpicture}
}
\end{figure}


This is what it looks like at the moment. How would I move it over?