AI-generated Key Takeaways
-
This webpage documents supported HTML elements, CSS properties and selectors, JavaScript Web APIs, protocols and media formats.
-
Supported HTML elements include basic structure tags, media elements, and interactive components like Lottie animations.
-
Comprehensive styling is possible with a range of CSS properties covering layout, fonts, colors, and visual effects, along with selectors for targeting elements.
-
JavaScript Web APIs enable interactions with web pages through features like fetching data, manipulating the DOM, handling media, and managing storage.
-
Supported media formats ensure playback of common audio, video, and image formats through various encodings and container types.
HTML elements
<a><audio><body><br><div><head><html><link>(withtype="text/css")<lottie-player><meta><script><span><style><title><video>
CSS properties
- align-content
- align-items
- align-self
- animation
- background, background-color, background-image
- border, border-top, border-bottom, border-left, border-right
- border-radius
- border-style
- border-width
- box-shadow
- color
- content
- display
- dpi
- flex
- flex-basis
- flex-direction
- flex-flow
- flex-grow
- flex-shrink
- flex-wrap
- font
- @font-face
- font-family
- font-size
- font-style
- font-weight
- justify-content
- line-height
- margin, margin-top, margin-bottom, margin-left, margin-right
- max-height, max-width
- @media
- opacity
- order
- overflow
- padding, padding-top, padding-bottom, padding-left, padding-right
- position
- top, bottom, left, right
- transform
- transform-origin
- transition
- transition-delay
- transition-duration
- transition-property
- transition-timing-function
- text-align
- text-indent
- text-overflow
- text-shadow
- text-transform
- vertical-align
(supported values:
top,bottom,middle,baseline) - visibility
- white-space
- z-index
CSS selectors
- Simple selectors: '*', type, .class, #id, :empty, :focus, :not()
- Pseudo elements: :before, :after,
- Combinators: ' ', '>', '+', '~'
- Grouping with ','
JavaScript Web APIs
Crypto.getRandomValues- CSSOM (partial)
- CSSOM View (no scrolling, moving, resizing)
Console.log- CORS
- DOM4 (partial)
- EncryptedMedia Extensions v0.1b (unprefixed)
- Fetch (supports text(), JSON(), arrayBuffer(), types)
Image(for preloading and caching only)- Intersection Observer
- Media Session
- Media Source Extensions, Editor's Draft 09 August 2012
- Streams API
- SubtleCrypto
- Typed Arrays (partial)
- URL (partial)
- Web Audio API (partial)
- Web Storage API
- WebIDL Level 2
- WebSocket API
window.atob()andwindow.btoa()- XMLHttpRequest Level 1
Protocols
- https:
- h5vcc-embedded: (for embedded resources)
- Content Security Policy Level 2 in HTTP headers is required, and report-only is disabled.
- QUIC
- SPDY
Media formats
Containers
- FLV
- MKV (for WebM)
- MP4/FMP4
- WAV
Encodings (depending on platform support)
- 16-bit stereo PCM audio (for sound effects)
- AAC
- AV1
- AVC (H.264) at 1080p/60fps (Level 4.2)
- Dolby Digital (AC-3)
- Dolby Digital Plus (Enhanced AC-3, or EAC-3)
- HEVC (H.265)
- VP8/Vorbis
- VP9/Opus
Images
- JPEG
- PNG
- WebP (including animated)