I’ve noticed a strange issue on one of the websites I’ve been working on — https://eyecolorcalculator.com/. The site works fine on most major browsers like Chrome, Edge, and Firefox, but when opened in Opera, some elements (like layout spacing and font rendering) seem to break or behave unexpectedly.

So far, I’ve tried:

Clearing cache and cookies

Disabling extensions

Testing on latest Opera version (Windows and Android)

But the issue still persists. Is there any known rendering difference in Opera’s engine that could cause this? Or anything specific I should check in the CSS/JS side?

Would really appreciate any insights. Thanks in advance!