Joomla! site template supports normal mode (when header, footer and other elements are shown) and "component" (print) mode when only component output is shown without header, footer and other elements. "ARI Quiz Anywhere" loads quizzes in "component" mode, but your site template loads different CSS files for "normal" and "component" mode. It doesn't load CSS file (<joomla_directory>/templates/yoo_pace/css/font2/opensans.css) which is required for your font in "component" mode.

Regards,
ARI Soft

Thank you for your kind interest and help.
I will try to implement it but could you please explain how to put this code into ARIQUIZ ANywhere?
Thank you

It is necessary to modify component.php site template file. We can help to do it if you provide a temporary access to your J! backend by email.

Regards,
ARI Soft