HTML features in BCD missing an MDN reference

The default filtering on this page lists HTML features with a high chance of being added to MDN Web Docs. If you want to fill the gaps, check if someone is working on it in the mdn/content GitHub repo. If there are no active pull requests for the feature, get in touch with us or open an issue with an intent to document it.

Here's a quick explanation of the terminology used:

Stable

A major browser supports this for at least 2 years, or it's supported in multiple major browser engines.

Standard

Formally defined in a specification.

Experimental

Only available behind configs / preferences in one browser.

Deprecated

Marked as not for use in modern websites / projects.