caniuse-features-lists.md

CSS

• ::first-letter CSS pseudo-element selector
• ::placeholder CSS pseudo-element
• ::selection CSS pseudo-element
• :dir() CSS pseudo-class
• :has() CSS relational pseudo-class
• :in-range and :out-of-range CSS pseudo-classes
• :matches() CSS pseudo-class
• :placeholder-shown CSS pseudo-class
• @font-face Web fonts
• Blending of HTML/SVG elements
• calc() as CSS unit value
• ch (character) unit
• 2.1 selectors
• ::marker pseudo-element
• :read-only and :read-write selectors
• all property
• Animation
• Appearance
• background-attachment
• background-blend-mode
• background-position edge offsets
• background-repeat round and space
• box-decoration-break
• caret-color
• clip-path property (for HTML)
• Conical Gradients
• Containment
• Counter Styles
• Counters
• currentColor value
• Device Adaptation
• display: contents
• element() function
• Exclusions Level 1
• Feature Queries
• Filter Effects
• filter() function
• first-line pseudo-element
• Flexible Box Layout Module
• font-feature-settings
• font-rendering controls
• font-size-adjust
• font-stretch
• font-variant-alternates
• Generated content for pseudo-elements
• Gradients
• Grid Layout
• hanging-punctuation
• Hyphenation
• image-set
• Initial Letter
• initial value
• inline-block
• Logical Properties
• Masks
• min/max-width/height
• Motion Path
• namespaces
• outline properties
• overflow-anchor (Scroll Anchoring)
• page-break properties
• position:fixed
• position:sticky
• Regions
• Repeating Gradients
• resize property
• revert value
• Scroll snap points
• Shapes Level 1
• Table display
• text-indent
• text-justify
• text-orientation
• touch-action property
• unset value
• user-select: none
• Variables (Custom Properties)
• widows & orphans
• will-change property
• writing-mode property
• 2D Transforms
• 3D Transforms
• attr() function for all properties
• Background-image options
• Border images
• Border-radius (rounded corners)
• Box-shadow
• Box-sizing
• Colors
• Cursors (original values)
• Cursors: zoom-in & zoom-out
• font-kerning
• image-orientation
• Media Queries
• Multiple backgrounds
• Multiple column layout
• object-fit/object-position
• Opacity
• Overflow-wrap
• selectors
• tab-size
• text-align-last
• Text-overflow
• Text-shadow
• Transitions
• word-break
• OM Scroll-behavior
• display: flow-root
• display: run-in
• Font unicode-range subsetting
• Intrinsic & Extrinsic Sizing
• letter-spacing CSS property
• Media Queries: interaction media features
• Media Queries: resolution feature
• Rebeccapurple color
• rem (root em) units
• selector list argument of :not()
• system-ui value for font-family
• text-decoration styling
• text-emphasis styling
• TTF/OTF - TrueType and OpenType font support
• Variable fonts
• Viewport units: vw, vh, vmin, vmax
• #rrggbbaa hex color notation
• :default CSS pseudo-class
• :focus-visible CSS pseudo-class
• :focus-within CSS pseudo-class
• :indeterminate CSS pseudo-class
• :optional CSS pseudo-class
• background-position-x & background-position-y
• Case-insensitive CSS attribute selectors
• Crisp edges/pixelated images
• @apply rule
• Backdrop Filter
• Canvas Drawings
• Cross-Fade Function
• font-smooth
• line-clamp
• overscroll-behavior
• pointer-events (for HTML)
• Reflections
• scrollbar styling
• text-size-adjust
• text-stroke and text-fill
• zoom
• Explicit descendant combinator >>
• Improved kerning pairs & ligatures
• prefers-reduced-motion media query
• selector list argument of :nth-child and :nth-last-child CSS pseudo-classes

HTML5

• accept attribute for file input
• Attributes for form submission
• Audio element
• Audio Tracks
• Autofocus attribute
• Canvas (basic support)
• Canvas blend modes
• classList (DOMTokenList)
• Color input type
• contenteditable attribute (basic support)
• Custom Elements v0
• Custom Elements v1
• Custom protocol handling
• Datalist element
• dataset & data-* attributes
• Date and time input types
• Details & Summary elements
• Dialog element
• disabled attribute of the fieldset element
• Download attribute
• Drag and Drop
• Email, telephone & URL input types
• Form attribute
• Form validation
• getElementsByClassName
• hidden attribute
• HTML Imports
• HTML Media Capture
• HTML templates
• HTML5 form features
• indeterminate checkbox
• input event
• input placeholder attribute
• meter element
• Minimum length attribute for input fields
• Multiple file selection
• naturalWidth & naturalHeight image properties
• New semantic elements
• Number input type
• OffscreenCanvas
• Path2D
• Pattern attribute for input fields
• Picture element
• Ping attribute
• PNG favicons
• progress element
• Range input type
• readonly attribute of input and textarea elements
• rel=noopener
• relList (DOMTokenList)
• Reversed attribute of ordered lists
• Ruby annotation
• sandbox attribute for iframes
• Search input type
• Session history management
• Spellcheck attribute
• srcdoc attribute for iframes
• Srcset and sizes attributes
• Subresource Integrity
• tabindex global attribute
• Text API for Canvas
• Video element
• Video Tracks
• wbr (word break opportunity) element
• Web App Manifest
• WebGL - 3D Canvas graphics
• WebGL 2.0
• Context menu item (menuitem element)
• Offline web applications
• Scoped CSS
• seamless attribute for iframes

Security

• 'SameSite' cookie attribute
• ChaCha20-Poly1305 cipher suites for TLS
• Content Security Policy 1.0
• Content Security Policy Level 2
• Encrypted Media Extensions
• Link type "noreferrer"
• Public Key Pinning
• Referrer Policy
• Server Name Indication
• Strict Transport Security
• TLS 1.1
• TLS 1.2
• TLS 1.3
• Upgrade Insecure Requests
• X-Frame-Options HTTP header

Other

• "once" event listener option
• AAC audio file format
• asm.js
• async attribute for external scripts
• autocomplete attribute: on & off values
• Brotli Accept-Encoding/Content-Encoding
• ChildNode.remove()
• Client Hints: DPR, Width, Viewport-Width
• CSS Paged Media (@page)
• Data URIs
• defer attribute for external scripts
• document.elementFromPoint()
• document.head
• document.scrollingElement
• DOM manipulation convenience methods
• DOMContentLoaded
• DOMMatrix
• Dynamic Adaptive Streaming over HTTP (MPEG-DASH)
• Element.closest()
• Element.insertAdjacentElement() & Element.insertAdjacentText()
• ES6 Generators
• EventTarget.addEventListener()
• EventTarget.dispatchEvent
• FLAC audio format
• focusin & focusout events
• getComputedStyle
• HEIF/ISO Base Media File Format
• HEVC/H.265 video format
• HTTP/2 protocol
• inputmode attribute
• JPEG 2000 image format
• JPEG XR image format
• KeyboardEvent.code
• KeyboardEvent.getModifierState()
• KeyboardEvent.key
• KeyboardEvent.location
• MathML
• Media Fragments
• MP3 audio format
• MPEG-4/H.264 video format
• Mutation events
• Node.compareDocumentPosition()
• Node.innerText
• Node.textContent
• Ogg Vorbis audio format
• Ogg/Theora video format
• Opus
• Passive event listeners
• PNG alpha transparency
• querySelector/querySelectorAll
• Resource Hints: dns-prefetch
• Resource Hints: preconnect
• Resource Hints: prefetch
• Resource Hints: preload
• Resource Hints: prerender
• SDCH Accept-Encoding/Content-Encoding
• Shadow DOM v0
• Shadow DOM v1
• WAI-ARIA Accessibility features
• Wav audio format
• WebAssembly
• WebM video format
• WebVTT - Web Video Text Tracks
• Window.devicePixelRatio
• WOFF - Web Open Font Format
• WOFF 2.0 - Web Open Font Format
• XHTML served as application/xhtml+xml
• Animated PNG (APNG)
• EOT - Embedded OpenType fonts
• HTTP Live Streaming (HLS)
• KeyboardEvent.charCode
• KeyboardEvent.which
• Resource Hints: Lazyload
• SPDY protocol
• WebP image format
• XHTML+SMIL animation

SVG

• Inline SVG in HTML5
• SVG (basic support)
• SVG effects for HTML
• SVG favicons
• SVG filters
• SVG fragment identifiers
• SVG in CSS backgrounds
• SVG in HTML img element
• SVG SMIL animation
• SVG fonts

JS API

• Ambient Light API
• Auxclick
• Base64 encoding and decoding
• Basic console logging functions
• Battery Status API
• Beacon API
• Blob constructing
• Blob URLs
• BroadcastChannel
• Channel messaging
• Clipboard API
• console.time and console.timeEnd
• Constraint Validation API
• Credential Management API
• Cross-document messaging
• Cross-Origin Resource Sharing
• crypto.getRandomValues()
• CSS Font Loading
• CSS Paint API
• CSS.supports() API
• CustomEvent
• DeviceOrientation & DeviceMotion events
• Document Object Model Range
• document.currentScript
• DOM Parsing and Serialization
• Element.getBoundingClientRect()
• Element.insertAdjacentHTML()
• Fetch
• FIDO U2F API
• File API
• FileReader API
• FileReaderSync
• Full Screen API
• Gamepad API
• Geolocation
• getUserMedia/Stream API
• Hashchange event
• High Resolution Time API
• IndexedDB
• IndexedDB 2.0
• Input Method Editor API
• Internationalization API
• IntersectionObserver
• matches() DOM method
• matchMedia
• maxlength attribute for input and textarea elements
• Media Capture from DOM Elements API
• Media Source Extensions
• MediaRecorder API
• Mutation Observer
• Navigation Timing API
• navigator.hardwareConcurrency
• Object RTC (ORTC) API for WebRTC
• Online/offline status
• Page Visibility
• PageTransitionEvent
• Payment Request API
• Pointer events
• Pointer Lock API
• Printing Events
• Proximity API
• Push API
• requestAnimationFrame
• requestIdleCallback
• Resource Timing
• Screen Orientation
• scrollIntoView
• Selection API
• Selection controls for input & textarea
• Server-sent events
• Service Workers
• Shared Web Workers
• Streams
• TextEncoder & TextDecoder
• Touch events
• unhandledrejection/rejectionhandled events
• URL API
• URLSearchParams
• User Timing API
• Vibration API
• Web Animations API
• Web Audio API
• Web Cryptography
• Web MIDI API
• Web Notifications
• Web Sockets
• Web Storage - name/value pairs
• Web Workers
• WebRTC Peer-to-peer connections
• XMLHttpRequest advanced features
• Background Sync API
• Directory selection from file input
• document.evaluate & XPath
• Document.execCommand()
• Efficient Script Yielding: setImmediate()
• Element.scrollIntoViewIfNeeded()
• Filesystem & FileWriter API
• Network Information API
• Permissions API
• Resize Observer
• Speech Recognition API
• Speech Synthesis API
• Web Bluetooth
• Web Share API
• Web SQL Database
• WebUSB
• WebVR API

JS

• Arrow functions
• Async functions
• const
• ECMAScript 5
• ECMAScript 5 Strict Mode
• ES6 classes
• ES6 Number
• ES6 Template Literals (Template Strings)
• JavaScript modules via script tag
• JSON parsing
• let
• localeCompare()
• Object.values method
• Promises
• Proxy object
• Rest parameters
• String.prototype.includes
• Typed Arrays
• Object.observe data binding