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Hello everybody !

I want to define many paragraph's title and just after a tabular or a figure. Here my code to do that :
\paragraph{blabla}
\begin{figure}[H]
\begin{center}
\includegraphics*[width=0.8\linewidth]{picture.png}
\end{center}
\vspace{-0.7cm} \caption{zouzou}
\end{figure ...