Hello WebKittens, I'd like to get opinion about implementing "font-family: math": https://www.w3.org/TR/css-fonts-4/#valdef-font-family-math This is a generic font family name from CSS fonts level 4, which is exactly doing what we need for MathML to get a default user-customizable math font (instead of the hardcoded values we currently have in the mathml.css UA sheet). See also https://webkit-search.igalia.com/webkit/rev/b28eaa8f270a9223d76cc4da9072d42b... https://trac.webkit.org/wiki/MathML/Fonts#CustomizingMathFont https://bugs.webkit.org/show_bug.cgi?id=156843 -- Frédéric Wang