> On paper yes. And that is after all these improvements. It still have more issues than others. Each browser has to pass thousands of the same tests; this isn

> On paper yes. And that is after all these improvements. It still have more issues than others. Each browser has to pass thousands of the same tests; this isn't just "on paper" compatibility. Each browser is 100% compatible with the CSS Nesting (for example) specification and with each other. The browser vendors get how important it is for features to function and render the same way in each browser.