[1] IRC logs: freenode / #whatwg / 20120803 ( ( 版)) <http://krijnhoetmer.nl/irc-logs/whatwg/20120803>
[2] IRC logs: freenode / #whatwg / 20121010 ( ( 版)) <http://krijnhoetmer.nl/irc-logs/whatwg/20121010>
[3] [css-values-4] Per WG resolution, dppx is the canonical <resolution> … (tabatkins著, ) <https://github.com/w3c/csswg-drafts/commit/ce8046fd907c17d2e0ab6d0f7ed65f81eedcb89a>
[4] [css-values-4][cssom] <resolution> serializes to 'dppx', not 'x' · Issue #2241 · w3c/csswg-drafts () <https://github.com/w3c/csswg-drafts/issues/2241>
[5] [css-values-4][cssom] <resolution> serializes to 'dppx', not 'x' · Issue #2241 · w3c/csswg-drafts () <https://github.com/w3c/csswg-drafts/issues/2241>