Audio element
Method of playing sound on webpages (without requiring a plug-in). Includes support for the following media properties: `currentSrc`, `currentTime`, `paused`, `playbackRate`, `buffered`, `duration`, `played`, `seekable`, `ended`, `autoplay`, `loop`, `controls`, `volume` & `muted`
Media Queries: interaction media features
Allows a media query to be set based on the presence and accuracy of the user's pointing device, and whether they have the ability to hover over elements on the page. This includes the `pointer`, `any-pointer`, `hover`, and `any-hover` media features.
Picture element
A responsive images method to control which image resource a user agent presents to a user, based on resolution, media query and/or support for a particular image format
querySelector/querySelectorAll
Method of accessing DOM elements using CSS selectors
Video element
Method of playing videos on webpages (without requiring a plug-in). Includes support for the following media properties: `currentSrc`, `currentTime`, `paused`, `playbackRate`, `buffered`, `duration`, `played`, `seekable`, `ended`, `autoplay`, `loop`, `controls`, `volume` & `muted`
elementinternals api: ariarequired
element api: ariarequired
element api: getboxquads
element api: queryselector
element api: queryselectorall
element api: requestfullscreen
element api: requestfullscreen: `options.navigationui` parameter
element api: requestfullscreen: `options.screen` parameter
element api: requestfullscreen: returns a `promise`
element api: requestpointerlock
element api: requestpointerlock: `options.unadjustedmovement` parameter
htmlcanvaselement api: toblob: `quality` parameter
htmlmarqueeelement api
htmlquoteelement api
htmlquoteelement api: cite
html element: blockquote
html element: blockquote: cite
html element: canvas: moz-opaque
html element: html: manifest: secure context required
html element: iframe: allowpaymentrequest
html element: marquee
html element: marquee: behavior
html element: marquee: bgcolor
html element: marquee: direction
html element: marquee: height
html element: marquee: hspace
html element: marquee: loop
html element: marquee: scrollamount
html element: marquee: scrolldelay
html element: marquee: truespeed
html element: marquee: vspace
html element: marquee: width
html element: meta: http-equiv
html element: meta: http-equiv: content-language
html element: meta: http-equiv: content-security-policy
html element: meta: http-equiv: content-type
html element: meta: http-equiv: refresh
html element: meta: http-equiv: set-cookie
html element: q
html element: q: cite
html element: script: type: `type="speculationrules"`: `requires` key
html element: script: type: `type="speculationrules"`: `requires` key: `anonymous-client-ip-when-cross-origin` value
html element: select: required
html element: textarea: required
svg element: feturbulence: basefrequency
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