I do agree, we still need to wait for all older browser to implement this (especially think of all the mobile browsers nowadays). If making a polyfill is the s

I do agree, we still need to wait for all older browser to implement this (especially think of all the mobile browsers nowadays). If making a polyfill is the solution, we risk ending up with a bigger polyfill file than the actual CSS implementation in the browser. If that is the case we can better do styling with JS.