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      Structure of content on the web

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      Code used to describe document style

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  1. MDN Web Docs Glossary: Definitions of Web-related terms
  2. CSS pixel

In this article

  • See also
  1. MDN Web Docs Glossary
    1. Abstraction
    2. Accent
    3. Accessibility
    4. Accessibility tree
    5. Accessible description
    6. Accessible name
    7. Adobe Flash
    8. Advance measure
    9. Ajax
    10. Algorithm
    11. Alignment container
    12. Alignment subject
    13. Alpha (alpha channel)
    14. ALPN
    15. API
    16. Apple Safari
    17. Application Context
    18. Argument
    19. ARIA
    20. ARPA
    21. ARPANET
    22. Array
    23. ASCII
    24. Asynchronous
    25. ATAG
    26. Attribute
    27. Bandwidth
    28. Base64
    29. Baseline
    30. Beacon
    31. Bézier curve
    32. bfcache
    33. BiDi
    34. BigInt
    35. Binding
    36. Bitwise flags
    37. Blink
    38. Block
    39. Block cipher mode of operation
    40. Block-level content
    41. Boolean
    42. Bounding Box
    43. Breadcrumb
    44. Brotli compression
    45. Browser
    46. Browsing context
    47. Buffer
    48. Cache
    49. Cacheable
    50. CalDAV
    51. Call stack
    52. Callback function
    53. Camel case
    54. Canonical order
    55. Canvas
    56. Card sorting
    57. CardDAV
    58. Caret
    59. CDN
    60. Certificate authority
    61. Certified
    62. Challenge-response authentication
    63. Character
    64. Character encoding
    65. Character set
    66. Chrome
    67. CIA
    68. Cipher
    69. Cipher suite
    70. Ciphertext
    71. Class
    72. Clickjacking
    73. Closure
    74. CMS
    75. Code point
    76. Code splitting
    77. Code unit
    78. Codec
    79. Color space
    80. Color wheel
    81. Compile
    82. Compile time
    83. Composite operation
    84. Computer Programming
    85. Conditional
    86. Constant
    87. Constructor
    88. Continuous Media
    89. Control flow
    90. Cookie
    91. Copyleft
    92. CORS
    93. CORS-safelisted request header
    94. CORS-safelisted response header
    95. Crawler
    96. CRLF
    97. Cross Axis
    98. Cross-site scripting (XSS)
    99. CRUD
    100. Cryptanalysis
    101. Cryptographic hash function
    102. Cryptography
    103. CSP
    104. CSRF
    105. CSS
    106. CSS Object Model (CSSOM)
    107. CSS pixel
    108. CSS preprocessor
    109. Data structure
    110. Database
    111. Decryption
    112. Deep copy
    113. Delta
    114. Denial of Service
    115. Deno
    116. Descriptor (CSS)
    117. Deserialization
    118. Developer Tools
    119. Digest
    120. Digital certificate
    121. Distributed Denial of Service
    122. DMZ
    123. DNS
    124. Doctype
    125. Document directive
    126. Document environment
    127. DOM (Document Object Model)
    128. Domain
    129. Domain name
    130. Domain sharding
    131. Dominator
    132. DoS attack
    133. DSL
    134. DTLS (Datagram Transport Layer Security)
    135. DTMF (Dual-Tone Multi-Frequency signaling)
    136. Dynamic typing
    137. ECMA
    138. ECMAScript
    139. Effective connection type
    140. Element
    141. Encapsulation
    142. Encryption
    143. Endianness
    144. Engine
    145. Entity
    146. Entity header
    147. Enumerated
    148. eTLD
    149. Event
    150. Exception
    151. EXIF
    152. Expando
    153. Fallback alignment
    154. Falsy
    155. Favicon
    156. Fetch directive
    157. Fetch metadata request header
    158. Fingerprinting
    159. Firefox OS
    160. Firewall
    161. First contentful paint
    162. First CPU idle
    163. First input delay
    164. First Meaningful Paint
    165. First paint
    166. First-class Function
    167. Flex
    168. Flex Container
    169. Flex Item
    170. Flexbox
    171. Forbidden header name
    172. Forbidden response header name
    173. Fork
    174. Fragmentainer
    175. Frame rate (FPS)
    176. FTP
    177. FTU
    178. Function
    179. Fuzz testing
    180. Gamut
    181. Garbage collection
    182. Gecko
    183. General header
    184. GIF
    185. Git
    186. Global object
    187. Global scope
    188. Global variable
    189. Glyph
    190. Google Chrome
    191. GPL
    192. GPU
    193. Graceful degradation
    194. Grid
    195. Grid Areas
    196. Grid Axis
    197. Grid Cell
    198. Grid Column
    199. Grid container
    200. Grid Lines
    201. Grid Row
    202. Grid Tracks
    203. Guard
    204. Gutters
    205. GZip compression
    206. Hash
    207. Head
    208. High-level programming language
    209. HMAC
    210. Hoisting
    211. Host
    212. Hotlink
    213. Houdini
    214. HPKP
    215. HSTS
    216. HTML
    217. HTML5
    218. HTTP
    219. HTTP header
    220. HTTP/2
    221. HTTP/3
    222. HTTPS
    223. HTTPS RR
    224. Hyperlink
    225. Hypertext
    226. IANA
    227. ICANN
    228. ICE
    229. IDE
    230. Idempotent
    231. Identifier
    232. IDL
    233. IETF
    234. IIFE
    235. IMAP
    236. Immutable
    237. IndexedDB
    238. Information architecture
    239. Inheritance
    240. Ink overflow
    241. Inline-level content
    242. Input method editor
    243. Instance
    244. Internationalization (i18n)
    245. Internet
    246. Interpolation
    247. Intrinsic size
    248. IP Address
    249. IPv4
    250. IPv6
    251. IRC
    252. ISO
    253. ISP
    254. ITU
    255. Jank
    256. Java
    257. JavaScript
    258. JPEG
    259. JSON
    260. JSON type representation
    261. Kebab case
    262. Key
    263. Keyword
    264. Largest contentful paint
    265. Latency
    266. Layout viewport
    267. Lazy load
    268. LGPL
    269. Ligature
    270. Literal
    271. Local scope
    272. Local variable
    273. Locale
    274. Localization
    275. Long task
    276. Loop
    277. Lossless compression
    278. Lossy compression
    279. LTR (Left To Right)
    280. Main Axis
    281. Main thread
    282. Markup
    283. MathML
    284. Media
    285. Media query
    286. Metadata
    287. Method
    288. Microsoft Edge
    289. Microsoft Internet Explorer
    290. Middleware
    291. MIME
    292. MIME type
    293. Minification
    294. MitM
    295. Mixin
    296. Mobile First
    297. Modem
    298. Modularity
    299. Mozilla Firefox
    300. Mutable
    301. MVC
    302. Namespace
    303. NaN
    304. NAT
    305. Native
    306. Navigation directive
    307. Netscape Navigator
    308. Network throttling
    309. NNTP
    310. Node
    311. Node.js
    312. Non-normative
    313. Normative
    314. Null
    315. Nullish value
    316. Number
    317. Object
    318. Object reference
    319. OOP
    320. OpenGL
    321. OpenSSL
    322. Opera Browser
    323. Operand
    324. Operator
    325. Origin
    326. OTA
    327. OWASP
    328. P2P
    329. PAC
    330. Packet
    331. Page load time
    332. Page prediction
    333. Parameter
    334. Parent object
    335. Parse
    336. Parser
    337. Payload body
    338. Payload header
    339. PDF
    340. Perceived performance
    341. Percent-encoding
    342. PHP
    343. Pixel
    344. Placeholder names
    345. Plaintext
    346. Plugin
    347. PNG
    348. Polyfill
    349. Polymorphism
    350. POP3
    351. Port
    352. Prefetch
    353. Preflight request
    354. Prerender
    355. Presto
    356. Primitive
    357. Privileged
    358. Privileged code
    359. Progressive Enhancement
    360. Progressive web apps
    361. Promise
    362. Property
    363. Protocol
    364. Prototype
    365. Prototype-based programming
    366. Proxy server
    367. Pseudo-class
    368. Pseudo-element
    369. Pseudocode
    370. Public-key cryptography
    371. Python
    372. Quality values
    373. Quaternion
    374. QUIC
    375. RAIL
    376. Random Number Generator
    377. Raster image
    378. RDF
    379. Real User Monitoring (RUM)
    380. Recursion
    381. Reflow
    382. Regular expression
    383. Render-blocking
    384. Rendering engine
    385. Repaint
    386. Replay attack
    387. Repo
    388. Reporting directive
    389. Representation header
    390. Request header
    391. Resource Timing
    392. Response header
    393. Responsive web design
    394. REST
    395. RGB
    396. RIL
    397. Robots.txt
    398. Round Trip Time (RTT)
    399. Routers
    400. RSS
    401. Rsync
    402. RTCP (RTP Control Protocol)
    403. RTF
    404. RTL (Right to Left)
    405. RTP (Real-time Transport Protocol) and SRTP (Secure RTP)
    406. RTSP: Real-time streaming protocol
    407. Ruby
    408. Safe
    409. Same-origin policy
    410. SCM
    411. Scope
    412. Screen reader
    413. Script-supporting element
    414. Scroll boundary
    415. Scroll chaining
    416. Scroll container
    417. SCTP
    418. SDK (Software Development Kit)
    419. SDP
    420. Search engine
    421. Second-level Domain
    422. Secure Context
    423. Secure Sockets Layer (SSL)
    424. Selector (CSS)
    425. Self-Executing Anonymous Function
    426. Semantics
    427. SEO
    428. Serializable object
    429. Serialization
    430. Server
    431. Server Timing
    432. Session Hijacking
    433. SGML
    434. Shadow tree
    435. Shallow copy
    436. Shim
    437. Signature
    438. SIMD
    439. Simple header
    440. Simple response header
    441. SISD
    442. Site
    443. Site map
    444. SLD
    445. Sloppy mode
    446. Slug
    447. Smoke Test
    448. SMPTE (Society of Motion Picture and Television Engineers)
    449. SMTP
    450. Snake case
    451. Snap positions
    452. SOAP
    453. SPA (Single-page application)
    454. Specification
    455. Speculative parsing
    456. Speed index
    457. SQL
    458. SQL Injection
    459. SRI
    460. Stacking context
    461. State machine
    462. Statement
    463. Static method
    464. Static typing
    465. Sticky activation
    466. Strict mode
    467. String
    468. Stringifier
    469. STUN
    470. Style origin
    471. Stylesheet
    472. Submit button
    473. SVG
    474. SVN
    475. Symbol
    476. Symmetric-key cryptography
    477. Synchronous
    478. Syntax
    479. Syntax error
    480. Synthetic monitoring
    481. Table Grid Box
    482. Table Wrapper Box
    483. Tag
    484. TCP
    485. TCP handshake
    486. TCP slow start
    487. Telnet
    488. Texel
    489. The Khronos Group
    490. Thread
    491. Three js
    492. Time to first byte
    493. Time to interactive
    494. TLD
    495. TOFU
    496. Top layer
    497. Transient activation
    498. Transport Layer Security (TLS)
    499. Tree shaking
    500. Trident
    501. Truthy
    502. TTL
    503. TURN
    504. Type
    505. Type coercion
    506. Type conversion
    507. TypeScript
    508. UDP (User Datagram Protocol)
    509. UI
    510. Undefined
    511. Unicode
    512. Unix time
    513. URI
    514. URL
    515. URN
    516. Usenet
    517. User agent
    518. UTF-8
    519. UUID
    520. UX
    521. Validator
    522. Value
    523. Variable
    524. Vendor Prefix
    525. Viewport
    526. Visual Viewport
    527. Void element
    528. VoIP
    529. W3C
    530. WAI
    531. WCAG
    532. Web performance
    533. Web server
    534. Web standards
    535. WebAssembly
    536. WebDAV
    537. WebExtensions
    538. WebGL
    539. WebIDL
    540. WebKit
    541. WebM
    542. WebP
    543. WebRTC
    544. WebSockets
    545. WebVTT
    546. WHATWG
    547. Whitespace
    548. WindowProxy
    549. World Wide Web
    550. Wrapper
    551. XForms Deprecated
    552. XHTML
    553. XInclude
    554. XLink
    555. XML
    556. XMLHttpRequest (XHR)
    557. XPath
    558. XQuery
    559. XSLT
    560. Zstandard compression

In this article

  • See also

CSS pixel

The term CSS pixel is synonymous with the CSS unit of absolute length px — which is normatively defined as being exactly 1/96th of 1 CSS inch (in).

See also

  • CSS Length Explained on the MDN Hacks Blog

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This page was last modified on Jun 8, 2023 by MDN contributors.

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CSS pixel by Mozilla Contributors is licensed under CC-BY-SA 2.5.