Checking cross-browser compatibility by code?

Question

css

Are there tools that can show the percentage of users whose site will be cross-browser (displayed without errors). For example, caniuse.com only shows statistics for a specific css property. And you also need to be able to see the statistics, for example, only for the CIS countries

Answer 1

See what browsers are used in the CIS. Then check on caniuse.com to see if the properties you want are supported by those browsers. But it will be easier to check on https://www.browserstack.com/ or on https://app.lambdatest.com/ the adequacy of displaying your site in different browsers.