\begin{abstract}
% Abstract here
% 300--350 words (https://lnu.se/en/library/forskningsstod/publish-with-lnu-press/checklistLUD/)
\kant[1-3]

%% With the null, we avoid the space when starting a new paragraph, if necessary
%\null
\bigskip
\vfill
\noindent
\textbf{Keywords:}
keyword1, keyword2

\end{abstract}

\cleardoublepage