# How do I center an arrow vertically

I want to put an arrow vertically centered to show a transition from a state top another. What I have is

\begin{center}
\includegraphics[scale=0.3]{img/1.1.PNG}$\longrightarrow$\includegraphics[scale=0.33]{img/1.2.PNG}
\end{center}


How can I do this? Any alternative arrangement that shows the idea I want to transmit is well recieved, even if it doesn't solve my question

Cheers

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Like this:

You need to set images baseline on theirs vertical center:

\documentclass{article}
$\longrightarrow$