<http://schema.org/description>
"Google announced that they may now auto-pick the font size and face depending on the viewer's screen.Google said they will \"optimize your ad units for your unique site and users.\"  That means, if you "^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.seroundtable.com/google-adsense-fonts-14522.html>