I’m struggling to size fonts between Retina devices. For instance, on a MacBook Pro, the fonts look fine. But on a standard 2017 Macbook (which is also Retina) they do not scale. I tried targeting the font sizes via custom code and even tried using Rem, Em and percentage scaling but it doesn’t seem to work.
Here is my site Read-Only: LINK
(how to share your site Read-Only link)
You can scale your font using view width seen as “vw”.
There is a really good post at CSS Tricks about Fluid Typography. It uses vw and a font style calculation which you are able to put into a style tag within the head of your page via page settings > custom code.
Not too sure if I am allowed to link to a 3rd party site but if you are interested to find it you can google it or PM for a link.
Hope it helps