documentclass{article}
usepackage[T1]{fontenc}
usepackage[supstfm=libertinesups]{superiors}
usepackage{libertine}
usepackage{fnpct}

usepackage{scrextend}

deffootnote{1.5em}{1em}{thefootnotemark. }

renewcommand*thempfootnote{arabic{mpfootnote}}
begin{document}

begin{minipage}{.5linewidth}
noindent The three little pigs built their houses
out of strawfootnote{not to be confused with hay},
sticksfootnote{or lumber according to some sources}
and bricksfootnote{probably fired clay bricks}.
end{minipage}

end{document}