Board Thread:Support Requests - Designing Your Wiki/@comment-37896274-20191004010915/@comment-9605025-20191015164145

I see. Well, I am still not sure where you got your CSS from because both of those sites do it "properly" and different from how you are trying to do it. What your CSS is doing is setting the "color" property to a linear gradient; which cannot be done on any browser (as far as I am aware).

What you can do is provide some plain-looking styling for all browsers and then use "@supports" to apply the text gradient only if the browser does support the properties. For example: For browsers that don't support the necessary properties, the text will appear in blue on a red background. For browsers that do support the necessary properties, the text will appear with the desired gradient.