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HTML has something of a legacy mode, https://en.m.wikipedia.org/wiki/Quirks_mode https://en.m.wikipedia.org/wiki/Quirks_mode Roughly anything before HTML5/4.01
by dictum 7y ago
HTML has something of a legacy mode, https://en.m.wikipedia.org/wiki/Quirks_mode https://en.m.wikipedia.org/wiki/Quirks_mode
Roughly anything before HTML5/4.01 and XHTML renders in quirks mode.
AFAIK there are no legacy CSS properties. Only nonstandard (i.e. prefixed or experimental and never published in finished specs) properties have been deprecated.
Browsers already have some leeway with DOM APIs. https://developers.google.com/web/updates/2017/01/scrolling-intervention https://developers.google.com/web/updates/2017/01/scrolling-...
- jcranmer 7y agoQuirks mode can largely be described with a quirks-mode stylesheet that applies several custom styles to all elements unless otherwise overridden.