See:
https://www.software.hixie.ch/utilities/js/live-dom-viewer/?saved=6702
Safari appears to resolve against zero.
Firefox appears to resolve against its (parents?) width?
This needs to be defined, and tests with various combinations of elements, and various writing modes (depending what is decided).
See:
https://www.software.hixie.ch/utilities/js/live-dom-viewer/?saved=6702
Safari appears to resolve against zero.
Firefox appears to resolve against its (parents?) width?
This needs to be defined, and tests with various combinations of elements, and various writing modes (depending what is decided).