https://www.w3.org/TR/css-inline-3/#alignment-baseline
Created attachment 405227 [details] Patch
<rdar://problem/66422103>
Created attachment 407105 [details] Patch
Committed r266062: <https://trac.webkit.org/changeset/266062> All reviewed patches have been landed. Closing bug and clearing flags on attachment 407105 [details].