[html][xhtml][mathml][svg][doctype]HTML, XHTML + MathML + SVG な DOCTYPE あれこれ。 / W3C QA - Recommended list of Doctype declarations you can use in your Web document
[html][xhtml][mathml][svg][doctype]HTML, XHTML + MathML + SVG な DOCTYPE あれこれ。 / W3C QA - Recommended list of Doctype declarations you can use in your Web document