Can I use
?

Index

CSS

  1. #rrggbbaa hex color notation
  2. ::backdrop
  3. ::column
  4. ::details-content
  5. ::file-selector-button
  6. ::first-letter CSS pseudo-element selector
  7. ::placeholder CSS pseudo-element
  8. ::selection CSS pseudo-element
  9. ::spelling-error and ::grammar-error
  10. ::target-text
  11. :autofill
  12. :default CSS pseudo-class
  13. :dir() CSS pseudo-class
  14. :empty
  15. :focus-visible CSS pseudo-class
  16. :focus-within CSS pseudo-class
  17. :has() CSS relational pseudo-class
  18. :has-slotted
  19. :host-context()
  20. :in-range and :out-of-range CSS pseudo-classes
  21. :indeterminate CSS pseudo-class
  22. :is() CSS pseudo-class
  23. :lang()
  24. :modal
  25. :nth-child()
  26. :nth-of-type() pseudo-classes
  27. :open
  28. :optional CSS pseudo-class
  29. :placeholder-shown CSS pseudo-class
  30. :root
  31. :scope (pseudo-class)
  32. :state()
  33. :target
  34. :user-valid and :user-invalid
  35. :where()
  36. <slot>
  37. @charset
  38. @font-face Web fonts
  39. @function
  40. @import
  41. @starting-style
  42. @supports (compatibility prefix)
  43. abs() and sign()
  44. Absolute positioning
  45. accent-color
  46. Active view transition
  47. align-content in block layouts
  48. alignment-baseline
  49. Alt text for generated content
  50. Animatable clipping paths
  51. animation-composition
  52. appearance
  53. aspect-ratio
  54. attr() (content only)
  55. Autonomous custom elements
  56. background-clip
  57. background-clip: border-area
  58. Background-clip: text
  59. background-clip: text
  60. background-color
  61. background-image
  62. background-origin
  63. background-position-x & background-position-y
  64. background-size
  65. baseline-shift
  66. baseline-source
  67. Blending of HTML/SVG elements
  68. border-shape
  69. Borders
  70. calc() as CSS unit value
  71. calc() keywords
  72. calc-size()
  73. cap unit
  74. caret-shape
  75. Case-insensitive CSS attribute selectors
  76. Case-sensitive attribute selector
  77. ch (character) unit
  78. clip
  79. Clip path boxes
  80. clip-path
  81. Color
  82. color-adjust
  83. color-gamut media query
  84. color-mix()
  85. color-mix() with three or more colors
  86. color-scheme
  87. Column breaks
  88. column-fill
  89. column-span
  90. contain-intrinsic-size
  91. Container scroll-state queries
  92. Content
  93. contrast-color()
  94. corner-shape
  95. counter-set
  96. Crisp edges/pixelated images
  97. crisp-edges
  98. cross-origin() for url()
  99. CSS -webkit-user-drag property
  100. CSS 2.1 selectors
  101. CSS ::marker pseudo-element
  102. CSS :any-link selector
  103. CSS :read-only and :read-write selectors
  104. CSS @when / @else conditional rules
  105. CSS all property
  106. CSS Anchor Positioning
  107. CSS Animation
  108. CSS Appearance
  109. CSS Backdrop Filter
  110. CSS background-attachment
  111. CSS background-blend-mode
  112. CSS background-position edge offsets
  113. CSS background-repeat round and space
  114. CSS box-decoration-break
  115. CSS Canvas Drawings
  116. CSS caret-color
  117. CSS Cascade Layers
  118. CSS clip-path property (for HTML)
  119. CSS color() function
  120. CSS Conical Gradients
  121. CSS Container Queries (Size)
  122. CSS Container Query Units
  123. CSS Container Style Queries
  124. CSS Containment
  125. CSS content-visibility
  126. CSS Counter Styles
  127. CSS Counters
  128. CSS Cross-Fade Function
  129. CSS currentColor value
  130. CSS Device Adaptation
  131. CSS display: contents
  132. CSS element() function
  133. CSS Environment Variables env()
  134. CSS Exclusions Level 1
  135. CSS Feature Queries
  136. CSS Filter Effects
  137. CSS filter() function
  138. CSS first-line pseudo-element
  139. CSS Flexible Box Layout Module
  140. CSS Font Loading
  141. CSS font-display
  142. CSS font-feature-settings
  143. CSS font-palette
  144. CSS font-size-adjust
  145. CSS font-smooth
  146. CSS font-stretch
  147. CSS font-variant-alternates
  148. CSS font-variant-numeric
  149. CSS Generated content for pseudo-elements
  150. CSS grab & grabbing cursors
  151. CSS Gradients
  152. CSS Grid Lanes
  153. CSS Grid Layout (level 1)
  154. CSS hanging-punctuation
  155. CSS Hyphenation
  156. CSS if() function
  157. CSS image-set
  158. CSS Initial Letter
  159. CSS initial value
  160. CSS inline-block
  161. CSS justify-content: space-evenly
  162. CSS line-clamp
  163. CSS Logical Properties
  164. CSS Masks
  165. CSS math functions min(), max() and clamp()
  166. CSS min/max-width/height
  167. CSS Motion Path
  168. CSS namespaces
  169. CSS Nesting
  170. CSS outline properties
  171. CSS overflow property
  172. CSS overflow-anchor (Scroll Anchoring)
  173. CSS overflow: overlay
  174. CSS overscroll-behavior
  175. CSS page-break properties
  176. CSS Painting API
  177. CSS pointer-events (for HTML)
  178. CSS position:fixed
  179. CSS position:sticky
  180. CSS print-color-adjust
  181. CSS Reflections
  182. CSS Regions
  183. CSS Relative color syntax
  184. CSS Repeating Gradients
  185. CSS resize property
  186. CSS revert value
  187. CSS Scroll Snap
  188. CSS Scroll-behavior
  189. CSS scrollbar styling
  190. CSS Shapes Level 1
  191. CSS Subgrid
  192. CSS Table display
  193. CSS Text Box
  194. CSS text-indent
  195. CSS text-justify
  196. CSS text-orientation
  197. CSS text-size-adjust
  198. CSS text-stroke and text-fill
  199. CSS text-wrap: balance
  200. CSS touch-action property
  201. CSS unset value
  202. CSS user-select: none
  203. CSS Variables (Custom Properties)
  204. CSS widows & orphans
  205. CSS will-change property
  206. CSS writing-mode property
  207. CSS zoom
  208. CSS3 2D Transforms
  209. CSS3 3D Transforms
  210. CSS3 attr() function for all properties
  211. CSS3 Background-image options
  212. CSS3 Border images
  213. CSS3 Border-radius (rounded corners)
  214. CSS3 Box-shadow
  215. CSS3 Box-sizing
  216. CSS3 Colors
  217. CSS3 Cursors (original values)
  218. CSS3 Cursors: zoom-in & zoom-out
  219. CSS3 font-kerning
  220. CSS3 image-orientation
  221. CSS3 Media Queries
  222. CSS3 Multiple backgrounds
  223. CSS3 Multiple column layout
  224. CSS3 object-fit/object-position
  225. CSS3 Opacity
  226. CSS3 Overflow-wrap
  227. CSS3 selectors
  228. CSS3 tab-size
  229. CSS3 text-align-last
  230. CSS3 Text-overflow
  231. CSS3 Text-shadow
  232. CSS3 Transitions
  233. CSS3 word-break
  234. cubic-bezier() easing
  235. Custom ellipses
  236. Custom highlights
  237. Device media queries
  238. Device posture
  239. display animation
  240. display-mode media query
  241. display: flow-root
  242. display: list-item
  243. display: ruby
  244. display: run-in
  245. DOM overlays for WebXR
  246. dominant-baseline
  247. dynamic-range media query
  248. dynamic-range-limit
  249. Element-scoped view transitions
  250. em unit
  251. ex unit
  252. Explicit descendant combinator >>
  253. Exponential functions (CSS)
  254. field-sizing
  255. fit-content
  256. float and clear
  257. Font metric overrides
  258. Font shorthand
  259. Font unicode-range subsetting
  260. font-family
  261. font-language-override
  262. font-optical-sizing
  263. font-palette animation
  264. font-size
  265. font-style
  266. font-synthesis
  267. font-synthesis-position
  268. font-synthesis-small-caps
  269. font-synthesis-style
  270. font-synthesis-weight
  271. font-variant
  272. font-variant-caps
  273. font-variant-east-asian
  274. font-variant-emoji
  275. font-variant-ligatures
  276. font-variant-position
  277. font-weight
  278. font-width
  279. Forced colors
  280. Fullscreen API
  281. gap property for Flexbox
  282. getComputedStyle
  283. glyph-orientation-vertical
  284. Gradient interpolation
  285. Gradients
  286. Grid animation
  287. High-quality kerning pairs & ligatures
  288. Host
  289. HWB
  290. Hyphenate character
  291. Hyphenate limit chars
  292. ic unit
  293. if()
  294. image-rendering: smooth
  295. ime-mode
  296. Individual transform properties
  297. inherit
  298. Inline-size containment
  299. Input selectors
  300. interactivity
  301. Interest invokers
  302. interpolate-size
  303. Intrinsic & Extrinsic Sizing
  304. inverted-colors media query
  305. isolation
  306. justify-self in block layouts
  307. Layout containment
  308. Layout direction override
  309. LCH and Lab color values
  310. letter-spacing CSS property
  311. lh unit
  312. light-dark()
  313. light-dark() image values
  314. line-break
  315. line-height
  316. linear() easing
  317. List style
  318. margin
  319. margin-trim
  320. mask-border
  321. mask-type
  322. Math font family
  323. Media element pseudo-classes
  324. Media Queries: interaction media features
  325. Media Queries: Range Syntax
  326. Media Queries: resolution feature
  327. min-content and max-content
  328. Multi-column layout
  329. object-position
  330. object-view-box
  331. Oklab and OkLCh
  332. Opacity (SVG)
  333. outline
  334. Outlines
  335. Overflow media queries
  336. overflow-clip-margin
  337. overflow: clip
  338. overlay
  339. padding
  340. Page break aliases
  341. Page breaks
  342. Page selectors
  343. page-orientation
  344. Paint containment
  345. paint-order
  346. Physical properties
  347. Pointer events
  348. Popover
  349. Position
  350. prefers-color-scheme media query
  351. prefers-color-scheme media query
  352. prefers-contrast media query
  353. prefers-reduced-motion media query
  354. prefers-reduced-transparency media query
  355. print-color-adjust
  356. progress()
  357. Q unit
  358. Quotes
  359. random()
  360. Range syntax for style queries
  361. rcap unit
  362. rch unit
  363. reading-flow
  364. Rebeccapurple color
  365. rect() and xywh()
  366. referrer-policy() for url()
  367. Registered custom properties
  368. Relative positioning
  369. rem (root em) units
  370. resolution media query (compatibility prefixes)
  371. Reversed counter-reset
  372. rex unit
  373. RGB
  374. ric unit
  375. rlh unit
  376. round(), mod(), and rem()
  377. ruby-align
  378. ruby-overhang
  379. ruby-position
  380. Scoped attribute
  381. Scoped Styles: the @scope rule
  382. scripting media query
  383. Scroll marker target pseudo-classes
  384. Scroll markers
  385. Scroll-driven animations
  386. scroll-initial-target
  387. scroll-target-group
  388. scrollbar-color
  389. scrollbar-gutter
  390. scrollbar-width
  391. selector list argument of :not()
  392. selector list argument of :nth-child and :nth-last-child CSS pseudo-classes
  393. Shadow parts
  394. shape()
  395. shape-outside
  396. sibling-count() and sibling-index()
  397. Size containment
  398. Small, Large, and Dynamic viewport units
  399. speak-as
  400. Static positioning
  401. steps() easing
  402. stretch
  403. Style containment
  404. SVG in CSS backgrounds
  405. System colors
  406. system-ui value for font-family
  407. Tables
  408. text-align
  409. text-combine-upright
  410. text-decoration in ::selection
  411. text-decoration styling
  412. text-decoration-line: blink
  413. text-decoration-skip-ink
  414. text-decoration-skip-ink: all
  415. text-emphasis styling
  416. text-indent: each-line
  417. text-indent: hanging
  418. text-spacing-trim
  419. text-transform
  420. text-underline-offset
  421. text-underline-position
  422. text-wrap
  423. text-wrap: balance
  424. text-wrap: pretty
  425. Time-relative pseudo-selectors
  426. transform-box
  427. transition-behavior
  428. Trigonometric functions (CSS)
  429. TTF/OTF - TrueType and OpenType font support
  430. Two-value display property
  431. ui-serif, ui-sans-serif, ui-monospace and ui-rounded values for font-family
  432. Update frequency media query
  433. User action pseudo-classes
  434. Variable fonts
  435. Vertical form controls
  436. vertical-align
  437. video-dynamic-range media query
  438. View Transitions (cross-document)
  439. View Transitions API (single-document)
  440. view-transition-class
  441. Viewport segments
  442. Viewport units: vw, vh, vmin, vmax
  443. visibility
  444. white-space
  445. white-space-collapse
  446. Width and height
  447. Window.devicePixelRatio
  448. word-break: auto-phrase
  449. word-break: break-word
  450. word-spacing
  451. writing-mode SVG 1.1 values
  452. z-index
  453. All CSS features

HTML5

  1. <a>
  2. <abbr>
  3. <address>
  4. <article>
  5. <aside>
  6. <b>
  7. <base>
  8. <bdi>
  9. <bdo>
  10. <blockquote>
  11. <body>
  12. <br>
  13. <button>
  14. <canvas>
  15. <cite>
  16. <code>
  17. <data>
  18. <del>
  19. <dfn>
  20. <dialog closedby>
  21. <div>
  22. <em>
  23. <embed>
  24. <fencedframe>
  25. <fieldset> and <legend>
  26. <figure> and <figcaption>
  27. <form>
  28. <geolocation>
  29. <h1> through <h6>
  30. <head>
  31. <header> and <footer>
  32. <hgroup>
  33. <hr>
  34. <html>
  35. <i>
  36. <iframe>
  37. <img sizes="auto" loading="lazy">
  38. <img>
  39. <input type="button">
  40. <input type="checkbox">
  41. <input type="file">
  42. <input type="hidden">
  43. <input type="image">
  44. <input type="password">
  45. <input type="radio">
  46. <input type="reset">
  47. <input type="submit">
  48. <input>
  49. <ins>
  50. <kbd>
  51. <label>
  52. <link rel="expect">
  53. <link rel="preconnect">
  54. <link>
  55. <main>
  56. <mark>
  57. <menu>
  58. <meta name="application-title">
  59. <meta name="text-scale">
  60. <meta>
  61. <nav>
  62. <object>
  63. <ol>, <ul>, and <li>
  64. <output>
  65. <p>
  66. <pre>
  67. <q>
  68. <s>
  69. <samp>
  70. <script> and <noscript>
  71. <search>
  72. <section>
  73. <select>
  74. <small>
  75. <source>
  76. <span>
  77. <strong>
  78. <style>
  79. <sub> and <sup>
  80. <textarea>
  81. <time>
  82. <title>
  83. <u>
  84. <var>
  85. Accelerometer
  86. accept attribute for file input
  87. accesskey
  88. alpha and colorspace attributes for <input type=color>
  89. Alternative style sheets
  90. async attribute for external scripts
  91. Attributes for form submission
  92. Attribution reporting
  93. Audio element
  94. Audio Tracks
  95. autocapitalize
  96. autocorrect
  97. Autofocus attribute
  98. blocking="render"
  99. Canvas (basic support)
  100. Canvas blend modes
  101. classList (DOMTokenList)
  102. Color input type
  103. contenteditable attribute (basic support)
  104. contenteditable="plaintext-only"
  105. Context menu item (menuitem element)
  106. controlslist
  107. CPU compute pressure
  108. Credentialless iframes
  109. Custom Elements (deprecated V0 spec)
  110. Custom Elements (V1)
  111. Custom protocol handling
  112. Customizable Select element
  113. Customized built-in elements
  114. Datalist element
  115. dataset & data-* attributes
  116. Date and time input types
  117. defer attribute for external scripts
  118. Description list
  119. Details & Summary elements
  120. Dialog element
  121. dirname
  122. disabled attribute of the fieldset element
  123. Download attribute
  124. Drag and Drop
  125. Email, telephone & URL input types
  126. enterkeyhint
  127. Fetch priority
  128. Form attribute
  129. Form validation
  130. getElementsByClassName
  131. Gyroscope
  132. Hashchange event
  133. hidden attribute
  134. hidden="until-found"
  135. HTML Imports
  136. HTML Media Capture
  137. HTML templates
  138. HTML5 semantic elements
  139. Idle detection
  140. Image maps
  141. indeterminate checkbox
  142. inert
  143. Inline SVG in HTML5
  144. input event
  145. input placeholder attribute
  146. inputmode attribute
  147. Invoker commands
  148. lang
  149. Lazy loading via attribute for images & iframes
  150. Lazy loading via attribute for video & audio
  151. Link type "noreferrer"
  152. Local fonts
  153. maxlength attribute for input and textarea elements
  154. Meta refresh
  155. meter element
  156. Minimum length attribute for input fields
  157. Multiple file selection
  158. Mutually exclusive <details> elements
  159. naturalWidth & naturalHeight image properties
  160. navigator.share()
  161. Number input type
  162. Offline web applications
  163. OffscreenCanvas
  164. PageTransitionEvent
  165. Path2D
  166. Pattern attribute for input fields
  167. Payment request
  168. Picture element
  169. Ping attribute
  170. PNG favicons
  171. popover="hint"
  172. Portals
  173. Preloading responsive images
  174. Presentation API
  175. Printing Events
  176. Private click measurement
  177. progress element
  178. Range input type
  179. readonly attribute of input and textarea elements
  180. rel=noopener
  181. relList (DOMTokenList)
  182. Remote playback
  183. Reversed attribute of ordered lists
  184. Ruby annotation
  185. sandbox attribute for iframes
  186. Screen capture
  187. seamless attribute for iframes
  188. Search input type
  189. Selection controls for input & textarea
  190. Session history management
  191. Speculation rules
  192. spellcheck
  193. Spellcheck attribute
  194. srcdoc attribute for iframes
  195. Srcset and sizes attributes
  196. Storage access
  197. style (attribute)
  198. Subresource Integrity
  199. SVG favicons
  200. tabindex global attribute
  201. Text API for Canvas
  202. Text tracks
  203. title (attribute)
  204. Topics
  205. translate
  206. Video element
  207. Video Tracks
  208. Virtual keyboard
  209. wbr (word break opportunity) element
  210. Web serial
  211. WebGL - 3D Canvas graphics
  212. WebGL 2.0
  213. WebOTP
  214. WebXR
  215. Window management
  216. writingsuggestions
  217. All HTML5 features

Other

  1. "once" event listener option
  2. AAC audio file format
  3. Anchor position container queries
  4. Animated PNG (APNG)
  5. Application shortcuts
  6. AudioListener setPosition() and setOrientation()
  7. autocomplete attribute: on & off values
  8. AV1 video format
  9. AVIF image format
  10. BMP
  11. Branch hinting (WebAssembly)
  12. Brotli Accept-Encoding/Content-Encoding
  13. Built-in PDF viewer
  14. ChildNode.remove()
  15. Clearing site data
  16. Client Hints: DPR, Width, Viewport-Width
  17. COEP violation reports
  18. COLR/CPAL(v0) Font Formats
  19. COLR/CPAL(v1) Font Formats
  20. Compression Dictionary Transport
  21. Cookies
  22. Crash reporting
  23. CSP violation reports
  24. CSS Paged Media (@page)
  25. Data URIs
  26. Data URLs
  27. Declarative Shadow DOM
  28. Device memory
  29. Document Policy
  30. document.elementFromPoint()
  31. document.head
  32. document.scrollingElement
  33. DOM manipulation convenience methods
  34. DOMContentLoaded
  35. DOMMatrix
  36. Dynamic Adaptive Streaming over HTTP (MPEG-DASH)
  37. Early data
  38. Element.closest()
  39. Element.insertAdjacentElement() & Element.insertAdjacentText()
  40. EOT - Embedded OpenType fonts
  41. EventTarget.addEventListener()
  42. EventTarget.dispatchEvent
  43. Exception handling (WebAssembly)
  44. Exception references with exnref (WebAssembly)
  45. Extended constant expressions (WebAssembly)
  46. Fetch metadata request headers
  47. fetchLater
  48. File handlers
  49. FLAC audio format
  50. focusin & focusout events
  51. Garbage collection (WebAssembly)
  52. GIF
  53. Global privacy control
  54. HEIF/HEIC image format
  55. HEVC/H.265 video format
  56. HTMLElement.innerText
  57. HTTP authentication
  58. HTTP Live Streaming (HLS)
  59. HTTP Strict Transport Security
  60. HTTP/1.1
  61. HTTP/2 protocol
  62. HTTP/3 protocol
  63. iterationComposite
  64. JavaScript promise integration (WebAssembly)
  65. JPEG
  66. JPEG 2000 image format
  67. JPEG XL image format
  68. JPEG XR image format
  69. KeyboardEvent.charCode
  70. KeyboardEvent.code
  71. KeyboardEvent.getModifierState()
  72. KeyboardEvent.key
  73. KeyboardEvent.location
  74. KeyboardEvent.which
  75. Launch handler
  76. MathML
  77. Media Fragments
  78. Memory64 (WebAssembly)
  79. Mixed content handling
  80. MP3 audio format
  81. MPEG-4/H.264 video format
  82. Multi-memory (WebAssembly)
  83. Mutation events
  84. Network Information
  85. Node.compareDocumentPosition()
  86. Node.textContent
  87. Ogg Vorbis audio format
  88. Ogg/Theora video format
  89. Opus audio format
  90. Partitioned cookies
  91. Passive event listeners
  92. Permissions policy violation reporting
  93. PNG alpha transparency
  94. Protocol handlers
  95. querySelector/querySelectorAll
  96. Related apps
  97. Relaxed-width SIMD (WebAssembly)
  98. Reporting API
  99. Resource Hints: dns-prefetch
  100. Resource Hints: Lazyload
  101. Resource Hints: modulepreload
  102. Resource Hints: preconnect
  103. Resource Hints: prefetch
  104. Resource Hints: preload
  105. Resource Hints: prerender
  106. Save-Data
  107. Scoped custom element registries
  108. SDCH Accept-Encoding/Content-Encoding
  109. Shadow DOM (deprecated V0 spec)
  110. Shadow DOM (V1)
  111. Share targets
  112. Signature-based resource integrity
  113. Signed HTTP Exchanges (SXG)
  114. Sourcemap header
  115. SPDY protocol
  116. Spelling and grammar text decorations
  117. String builtins (WebAssembly)
  118. Summarizer
  119. Tail call optimization (WebAssembly)
  120. theme-color Meta Tag
  121. Typed function references (WebAssembly)
  122. Upgrade insecure requests
  123. URL Scroll-To-Text Fragment
  124. User agent client hints
  125. WAI-ARIA Accessibility features
  126. Wav audio format
  127. Web app manifest
  128. Web app origin migration
  129. WebAssembly
  130. WebAssembly BigInt to i64 conversion in JS API
  131. WebAssembly Bulk Memory Operations
  132. WebAssembly Import/Export of Mutable Globals
  133. WebAssembly Multi-Value
  134. WebAssembly Non-trapping float-to-int Conversion
  135. WebAssembly Reference Types
  136. WebAssembly Sign Extension Operators
  137. WebAssembly SIMD
  138. WebAssembly Threads and Atomics
  139. WebDriver BiDi
  140. WEBGL_compressed_texture_s3tc_srgb WebGL extension
  141. WebM video format
  142. WebP image format
  143. WebVTT - Web Video Text Tracks
  144. Window Controls Overlay
  145. WOFF - Web Open Font Format
  146. WOFF 2.0 - Web Open Font Format
  147. XHTML served as application/xhtml+xml
  148. XHTML+SMIL animation
  149. zstd (Zstandard) content-encoding
  150. All Other features

JS API

  1. 2D canvas
  2. 2D canvas opacity
  3. Abortable fetch
  4. AbortController & AbortSignal
  5. AbortSignal.any()
  6. AbortSignal.timeout()
  7. Accelerometer
  8. Alerts
  9. Ambient Light Sensor
  10. Anchors (WebXR)
  11. ANGLE_instanced_arrays WebGL extension
  12. ARIA attribute reflection
  13. ariaNotify()
  14. Asynchronous Clipboard API
  15. Asynchronously iterable streams
  16. Audio session
  17. AudioListener
  18. AudioWorklet
  19. Augmented reality
  20. Auxclick
  21. Back/forward cache blocking reasons
  22. Background fetch
  23. Background sync
  24. Background Sync API
  25. Badging
  26. Barcode detector
  27. BarProp
  28. Base64 encoding and decoding
  29. Basic console logging functions
  30. Battery Status API
  31. Beacon API
  32. beforeinstallprompt
  33. beforeunload
  34. Blob constructing
  35. Blob URLs
  36. BroadcastChannel
  37. Canvas createConicGradient()
  38. Canvas reset()
  39. Canvas roundRect()
  40. Capture Handle
  41. captureStream() for <audio> and <video>
  42. captureStream() for <canvas>
  43. Change event
  44. Channel messaging
  45. checkVisibility()
  46. Clipboard events
  47. clipboardchange
  48. ClipboardItem.supports()
  49. CloseWatcher
  50. Color management for 2D canvas
  51. Color management for WebGL
  52. Color management for WebGL2
  53. Composition events
  54. Compression streams
  55. console.time and console.timeEnd
  56. Constraint Validation API
  57. Constructed stylesheets
  58. Contact picker
  59. Content Index
  60. contextlost and contextrestored
  61. Cookie Store API
  62. cookieEnabled
  63. Crash report storage
  64. createImageBitmap
  65. Credential management
  66. Credential Management API
  67. Cross-document messaging
  68. Cross-Origin Resource Sharing
  69. crypto.getRandomValues()
  70. CSS object model
  71. CSS object model (DOM level 2)
  72. CSS typed object model
  73. CSS.escape()
  74. CSS.supports() API
  75. Custom formats for clipboard items
  76. Custom highlights from point
  77. CustomEvent
  78. Deprecation reports
  79. Depth sensing
  80. Desynchronized 2D canvas
  81. Desynchronized WebGL canvas
  82. Desynchronized WebGL2 canvas
  83. DeviceOrientation & DeviceMotion events
  84. dialog.requestClose()
  85. Digital credentials
  86. Digital goods
  87. Directory selection from file input
  88. Do Not Track API
  89. Document colors
  90. Document Object Model Range
  91. Document picture-in-picture
  92. document.caretPositionFromPoint()
  93. document.currentScript
  94. document.evaluate & XPath
  95. Document.execCommand()
  96. document.write()
  97. DOM
  98. DOM Geometry
  99. DOM Parsing and Serialization
  100. DOMParser
  101. EditContext
  102. Efficient Script Yielding: setImmediate()
  103. Element capture
  104. Element timing
  105. Element.getBoundingClientRect()
  106. Element.insertAdjacentHTML()
  107. Element.scrollIntoViewIfNeeded()
  108. Encrypted Media Extensions
  109. Event timing
  110. execCommand()
  111. EXT_blend_minmax WebGL extension
  112. EXT_color_buffer_float WebGL extension
  113. EXT_color_buffer_half_float WebGL extension
  114. EXT_float_blend WebGL extension
  115. EXT_frag_depth WebGL extension
  116. EXT_shader_texture_lod WebGL extension
  117. EXT_sRGB WebGL extension
  118. EXT_texture_compression_bptc WebGL extension
  119. EXT_texture_compression_rgtc WebGL extension
  120. EXT_texture_filter_anisotropic WebGL extension
  121. EXT_texture_norm16 WebGL extension
  122. Eyedropper
  123. fastSeek()
  124. Feature Policy
  125. Federated credential management
  126. Federated credentials
  127. Fetch
  128. Fetch form data
  129. Fetch upload streams
  130. FIDO U2F API
  131. File API
  132. File System Access API
  133. FileReader API
  134. FileReaderSync
  135. Filesystem & FileWriter API
  136. Focus events
  137. Form-associated custom elements
  138. Gamepad (WebXR)
  139. Gamepad API
  140. Gamepad haptic feedback
  141. Gamepad touch buttons
  142. Gamepad VR hands and poses
  143. Geolocation
  144. getHTML()
  145. getUserMedia/Stream API
  146. Gyroscope
  147. Hand input
  148. High Resolution Time API
  149. Hit test
  150. ImageBitmapRenderingContext
  151. ImageCapture API
  152. Imperative slot assignment
  153. IndexedDB
  154. IndexedDB 2.0
  155. IndexedDB getAllRecords()
  156. Ink
  157. Input Method Editor API
  158. Insertable streams for MediaStreamTrack
  159. IntersectionObserver
  160. IntersectionObserver V2
  161. Intervention reports
  162. isInputPending()
  163. isSecureContext
  164. JavaScript modules in shared workers
  165. Keyboard events
  166. Keyboard lock
  167. Keyboard map
  168. KHR_parallel_shader_compile WebGL extension
  169. Language
  170. Language detector
  171. LanguageModel
  172. Largest contentful paint (LCP)
  173. Layers (WebXR)
  174. Layout instability
  175. Lighting estimation
  176. Local network access
  177. Location
  178. Locks
  179. Long animation frames
  180. Long tasks
  181. Magnetometer
  182. Managed media source
  183. matches() DOM method
  184. matchMedia
  185. Media capabilities
  186. Media Capture from DOM Elements API
  187. Media playback quality
  188. Media session
  189. Media Source Extensions
  190. MediaController
  191. MediaRecorder API
  192. MediaStream recording
  193. Memory measurement
  194. messageerror
  195. Mouse events
  196. moveBefore()
  197. Mutation Observer
  198. MutationObserver
  199. Navigation API
  200. Navigation precommit handlers
  201. Navigation timing
  202. Navigation Timing API
  203. Navigation timing confidence
  204. Navigator
  205. navigator.hardwareConcurrency
  206. Network Information API
  207. Non-cookie storage access
  208. Notifications
  209. Numeric factory functions
  210. Object RTC (ORTC) API for WebRTC
  211. Observable
  212. OES_draw_buffers_indexed WebGL extension
  213. OES_element_index_uint WebGL extension
  214. OES_fbo_render_mipmap WebGL extension
  215. OES_standard_derivatives WebGL extension
  216. OES_texture_float WebGL extension
  217. OES_texture_float_linear WebGL extension
  218. OES_texture_half_float WebGL extension
  219. OES_texture_half_float_linear WebGL extension
  220. OES_vertex_array_object WebGL extension
  221. OfflineAudioContext
  222. Online/offline status
  223. Orientation Sensor
  224. Orientation Sensor
  225. Origin
  226. Origin private file system
  227. OVR_multiview2 WebGL extension
  228. Page lifecycle
  229. Page Visibility
  230. Page visibility state
  231. Paint timing
  232. Passkeys
  233. Password credentials
  234. Payment handler
  235. Payment Request API
  236. pdfViewerEnabled
  237. PerformanceTiming and PerformanceNavigation
  238. Periodic background sync
  239. Permissions API
  240. Permissions Policy
  241. Picture-in-Picture
  242. Pointer Lock API
  243. preservesPitch
  244. Profiler
  245. Protected audience
  246. Proximity API
  247. Push API
  248. queueMicrotask()
  249. Raw camera access for WebXR
  250. Read unsanitized clipboard data
  251. ReadableStream.from()
  252. Region capture
  253. registerProtocolHandler
  254. Related website sets
  255. requestAnimationFrame
  256. requestAnimationFrame() in workers
  257. requestIdleCallback
  258. requestVideoFrameCallback()
  259. Resize Observer
  260. Resource size
  261. Resource Timing (basic support)
  262. Sanitizer API
  263. Scheduler API
  264. Screen
  265. Screen Orientation
  266. Screen orientation lock
  267. Screen Wake Lock API
  268. Scroll methods on elements (scroll, scrollTo, scrollBy)
  269. Scroll snap events
  270. scrollend
  271. scrollIntoView
  272. scrollIntoView() container
  273. Secure payment confirmation
  274. Selection API
  275. Selection composed ranges
  276. Server Timing
  277. Server-sent events
  278. Service Workers
  279. setInterval
  280. setTimeout()
  281. Shared storage locks
  282. Shared Web Workers
  283. SharedArrayBuffer in WebGL
  284. showPicker() for <input>
  285. showPicker() for <select>
  286. Speech Recognition API
  287. Speech Synthesis API
  288. Storage buckets
  289. Storage manager
  290. Streams
  291. Streams
  292. structuredClone()
  293. SVG clipboard items
  294. Synchronous Clipboard API
  295. TextEncoder & TextDecoder
  296. ToggleEvent source
  297. Touch events
  298. Transferable streams
  299. Translator
  300. Trusted Types for DOM manipulation
  301. Unsanitized HTML parsing methods
  302. URL API
  303. URL.canParse()
  304. URLPattern
  305. URLSearchParams
  306. User activation
  307. User agent sniffing
  308. User Timing API
  309. Vibration
  310. Vibration API
  311. Visual viewport API
  312. Web Animations API
  313. Web Audio API
  314. Web authentication easy public key access
  315. Web authentication signal methods
  316. Web Bluetooth
  317. Web Cryptography
  318. Web MIDI API
  319. Web NFC
  320. Web Notifications
  321. Web Serial API
  322. Web Share API
  323. Web Sockets
  324. Web SQL Database
  325. Web Storage - name/value pairs
  326. Web Workers
  327. WebCodecs API
  328. WEBGL_color_buffer_float WebGL extension
  329. WEBGL_compressed_texture_astc WebGL extension
  330. WEBGL_compressed_texture_etc WebGL extension
  331. WEBGL_compressed_texture_etc1 WebGL extension
  332. WEBGL_compressed_texture_pvrtc WebGL extension
  333. WEBGL_compressed_texture_s3tc WebGL extension
  334. WEBGL_debug_renderer_info WebGL extension
  335. WEBGL_debug_shaders WebGL extension
  336. WEBGL_depth_texture WebGL extension
  337. WEBGL_draw_buffers WebGL extension
  338. WEBGL_lose_context WebGL extension
  339. WEBGL_multi_draw WebGL extension
  340. WebGPU
  341. WebHID API
  342. WebRTC encoded transform
  343. WebRTC Peer-to-peer connections
  344. WebRTC SCTP information
  345. WebRTC statistics
  346. WebTransport
  347. WebUSB
  348. WebVR API
  349. WebVTT cue alignment
  350. WebVTT cue settings
  351. WebVTT regions
  352. WebXR Device API
  353. Wheel events
  354. willReadFrequently
  355. Window
  356. window.external
  357. window.print()
  358. XMLHttpRequest
  359. XMLHttpRequest advanced features
  360. XMLSerializer
  361. XSLT
  362. All JS API features