Hello @cartflows,
I have WP Rocket installed buy already deactivated. No cache solution at server side.
The CSS used is: https://pastebin.com/Zy8Y9MW3 and https://pastebin.com/qHDwCYDN. One is used at one element for desktop and another for mobile. One shortcode each.
I haven`t put any css regarding browser, but as you can see, they are displaying differently.
