Chromium-based browsers have -webkit-box-reflect [0], which does some of the things that element() does. Specifically, it does reflections of elements. That's

Chromium-based browsers have -webkit-box-reflect [0], which does some of the things that element() does. Specifically, it does reflections of elements. That's really the big use case for -moz-element IMO. [0]: https://developer.mozilla.org/en-US/docs/Web/CSS/-webkit-box-reflect https://developer.mozilla.org/en-US/docs/Web/CSS/-webkit-box...