Note below figure as long as the figure - all centered but note left-aligned

Question

I have a similar problem with my figure that is scaled, so the footnote/text underneath will be as long as the linewidth not as long as the figure. the figure is in the center and I want a caption above it to be in the center too. But the explanation should stand below the figure and be just as long as the figure (LEFT-aligned). Caption gives me the text above the figure and the text goes outside the figure, too. Here is what I got:

% I tried this:
% but the text starts outside the figure \\
\begin{figure}[hp]\caption[]{Balancing Diagnostics Kernel}
\footnotesize\centering
\includegraphics[width=0.7\textwidth]{Gaus.pdf}
\item\emph{Notes:} This figure provides a graphical illustration of the common trend assumption. And again this figure provides a graphical illustration of the perfect approach for estimating something.
\end{figure}

Any idea for figures that are not textwidth but 0.7\textwidth? How do I get an explanation of the figure underneath a scaled figure so that it will be as short as the figure?

This is similar to this problem, but the solutions do not work for scaled figures as it seems. Note below figure

Answer 1

You can put the image and its description into a minipage environment. Now you can set the width of image and Text below to the same value by just adjusting the minipage width. Remark: you have to set the width of the image now to \linewidth as \linewidth is now the width of the minipage.

\documentclass{article}
\begin{document}
\begin{figure}[hp]\caption[]{Balancing Diagnostics Kernel}
\centering
\begin{minipage}{.7\linewidth}
%\includegraphics[width=\linewidth]{Gaus.pdf}
\rule{\linewidth}{10em}
\footnotesize
\emph{Notes:} This figure provides a graphical illustration of the common trend assumption. And again this figure provides a graphical illustration of the perfect approach for estimating something.
\end{minipage}
\end{figure}
Some other random text that should fill the whole line like blablabla and the like...
\end{document}