\usepackage{fancyhdr}
\usepackage{fontspec}
\usepackage{titlesec}
\usepackage{graphicx}

\usepackage{datetime}
\usepackage[iso,english]{isodate}

% unix shell date
%\immediate\write18{date >\jobname.date}

% no page numbers
\pagenumbering{gobble}


\setmainfont{Quattrocento Sans}
%\newfontfamily\sectionfont{Share-ItalicOSF}
%\newfontfamily\sectionfont{Josefin Slab}
\newfontfamily\sectionfont{Roboto Light}

\pagestyle{fancy}
\fancyhf{}
%\rhead{various \XeTeX}
\lhead{Quattrocento Sans / Roboto Light }
\rfoot{\sectionfont\tiny{printed: \isodate{\today} \currenttime \selectfont}}


\titleformat*{\subsection}{\sectionfont\fontsize{32}{20}\selectfont}
\titleformat*{\subsubsection}{\sectionfont\fontsize{32}{12}\selectfont}


%\titleformat*{\subsubsection}{\sectionfont\resizebox{40pt}{!}\selectfont}
%\titleformat*{\subsubsection}{\sectionfont\fontsize{32}{12}\selectfont}


%\titleformat{\subsection}{\sectionfont\selectfont}{\resizebox{10cm}{!}]{\thesection}}{1em}{}
%\titleformat{\subsubsection}{\sectionfont\selectfont}{\resizebox{10cm}{!}]{\thesection}}{1em}{}