Hey everyone, This is the first patch addressing an item raised in https://orgmode.org/list/87sga4914t.fsf@gmail.com/ [subject: W3C violations in Org's HTML export]. For more information see the email mentioned above and/or the commit message. It's worth nothing that the current approach isn't just "not great", but actually causes some issues. For instance, in the ox-html export of my Emacs config, here's an SVG generated by Gnuplot with org-plot: