I've run into Safari exclusive issues before as well around color transparency, but tbh I'm surprised it comes up that often. Modern IDEs support linters that w

I've run into Safari exclusive issues before as well around color transparency, but tbh I'm surprised it comes up that often. Modern IDEs support linters that warn you whenever you are using a CSS feature that isn't supported by all modern browsers. You can even set the year you wanna support (e.g. all major browser versions since 2023). Between that awesome tooling and rapidly improving browser support for web standards, these kinds of issues feel extremely rare. Except for printing. Printing has and seemingly always will f'n suck. Unfortunately WPT doesn't have a good way of testing for print-related features