s site has 95% support or more on <a href="https://caniuse.com">caniuse.com</a>, 
                    with the exception of <a href="https://caniuse.com/import-maps">Import Maps</a> (93%), 
                    <a href="https://caniuse.com/mdn-api_elementinternals">ElementInternals</a> (92%), 
                    <a href="https://caniuse.com/declarative-shadow-dom">Declarative Shadow DOM</a> (91%), and <a href="https://caniuse.com/css-nesting">CSS Nesting</a> (88%), and it won't be long before those catch up