Reply To: Multi colored gradient border

[Beverleyh]

then I tried wrapping the iframe with a new class and nothing applies.

Not sure what you mean there. Can you make a demo of what you’ve tried in something like CodePen so that we can see the problem first hand?

As for support;
border-image http://caniuse.com/#feat=border-image
linear-gradient http://caniuse.com/#feat=css-gradients