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  1. {
  2. "@charset": {
  3. "syntax": "@charset \"<charset>\";",
  4. "groups": [
  5. "CSS Charsets"
  6. ],
  7. "status": "standard",
  8. "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@charset"
  9. },
  10. "@counter-style": {
  11. "syntax": "@counter-style <counter-style-name> {\n [ system: <counter-system>; ] ||\n [ symbols: <counter-symbols>; ] ||\n [ additive-symbols: <additive-symbols>; ] ||\n [ negative: <negative-symbol>; ] ||\n [ prefix: <prefix>; ] ||\n [ suffix: <suffix>; ] ||\n [ range: <range>; ] ||\n [ pad: <padding>; ] ||\n [ speak-as: <speak-as>; ] ||\n [ fallback: <counter-style-name>; ]\n}",
  12. "interfaces": [
  13. "CSSCounterStyleRule"
  14. ],
  15. "groups": [
  16. "CSS Counter Styles"
  17. ],
  18. "descriptors": {
  19. "additive-symbols": {
  20. "syntax": "[ <integer> && <symbol> ]#",
  21. "media": "all",
  22. "initial": "N/A",
  23. "percentages": "no",
  24. "computed": "asSpecified",
  25. "order": "orderOfAppearance",
  26. "status": "standard"
  27. },
  28. "fallback": {
  29. "syntax": "<counter-style-name>",
  30. "media": "all",
  31. "initial": "decimal",
  32. "percentages": "no",
  33. "computed": "asSpecified",
  34. "order": "uniqueOrder",
  35. "status": "standard"
  36. },
  37. "negative": {
  38. "syntax": "<symbol> <symbol>?",
  39. "media": "all",
  40. "initial": "\"-\" hyphen-minus",
  41. "percentages": "no",
  42. "computed": "asSpecified",
  43. "order": "orderOfAppearance",
  44. "status": "standard"
  45. },
  46. "pad": {
  47. "syntax": "<integer> && <symbol>",
  48. "media": "all",
  49. "initial": "0 \"\"",
  50. "percentages": "no",
  51. "computed": "asSpecified",
  52. "order": "uniqueOrder",
  53. "status": "standard"
  54. },
  55. "prefix": {
  56. "syntax": "<symbol>",
  57. "media": "all",
  58. "initial": "\"\"",
  59. "percentages": "no",
  60. "computed": "asSpecified",
  61. "order": "uniqueOrder",
  62. "status": "standard"
  63. },
  64. "range": {
  65. "syntax": "[ [ <integer> | infinite ]{2} ]# | auto",
  66. "media": "all",
  67. "initial": "auto",
  68. "percentages": "no",
  69. "computed": "asSpecified",
  70. "order": "orderOfAppearance",
  71. "status": "standard"
  72. },
  73. "speak-as": {
  74. "syntax": "auto | bullets | numbers | words | spell-out | <counter-style-name>",
  75. "media": "all",
  76. "initial": "auto",
  77. "percentages": "no",
  78. "computed": "asSpecified",
  79. "order": "uniqueOrder",
  80. "status": "standard"
  81. },
  82. "suffix": {
  83. "syntax": "<symbol>",
  84. "media": "all",
  85. "initial": "\". \"",
  86. "percentages": "no",
  87. "computed": "asSpecified",
  88. "order": "uniqueOrder",
  89. "status": "standard"
  90. },
  91. "symbols": {
  92. "syntax": "<symbol>+",
  93. "media": "all",
  94. "initial": "N/A",
  95. "percentages": "no",
  96. "computed": "asSpecified",
  97. "order": "orderOfAppearance",
  98. "status": "standard"
  99. },
  100. "system": {
  101. "syntax": "cyclic | numeric | alphabetic | symbolic | additive | [ fixed <integer>? ] | [ extends <counter-style-name> ]",
  102. "media": "all",
  103. "initial": "symbolic",
  104. "percentages": "no",
  105. "computed": "asSpecified",
  106. "order": "uniqueOrder",
  107. "status": "standard"
  108. }
  109. },
  110. "status": "standard",
  111. "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@counter-style"
  112. },
  113. "@document": {
  114. "syntax": "@document [ <url> | url-prefix(<string>) | domain(<string>) | media-document(<string>) | regexp(<string>) ]# {\n <group-rule-body>\n}",
  115. "interfaces": [
  116. "CSSGroupingRule",
  117. "CSSConditionRule"
  118. ],
  119. "groups": [
  120. "CSS Conditional Rules"
  121. ],
  122. "status": "nonstandard",
  123. "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@document"
  124. },
  125. "@font-face": {
  126. "syntax": "@font-face {\n [ font-family: <family-name>; ] ||\n [ src: <src>; ] ||\n [ unicode-range: <unicode-range>; ] ||\n [ font-variant: <font-variant>; ] ||\n [ font-feature-settings: <font-feature-settings>; ] ||\n [ font-variation-settings: <font-variation-settings>; ] ||\n [ font-stretch: <font-stretch>; ] ||\n [ font-weight: <font-weight>; ] ||\n [ font-style: <font-style>; ]\n}",
  127. "interfaces": [
  128. "CSSFontFaceRule"
  129. ],
  130. "groups": [
  131. "CSS Fonts"
  132. ],
  133. "descriptors": {
  134. "font-display": {
  135. "syntax": "[ auto | block | swap | fallback | optional ]",
  136. "media": "visual",
  137. "percentages": "no",
  138. "initial": "auto",
  139. "computed": "asSpecified",
  140. "order": "uniqueOrder",
  141. "status": "experimental"
  142. },
  143. "font-family": {
  144. "syntax": "<family-name>",
  145. "media": "all",
  146. "initial": "n/a (required)",
  147. "percentages": "no",
  148. "computed": "asSpecified",
  149. "order": "uniqueOrder",
  150. "status": "standard"
  151. },
  152. "font-feature-settings": {
  153. "syntax": "normal | <feature-tag-value>#",
  154. "media": "all",
  155. "initial": "normal",
  156. "percentages": "no",
  157. "computed": "asSpecified",
  158. "order": "orderOfAppearance",
  159. "status": "standard"
  160. },
  161. "font-variation-settings": {
  162. "syntax": "normal | [ <string> <number> ]#",
  163. "media": "all",
  164. "initial": "normal",
  165. "percentages": "no",
  166. "computed": "asSpecified",
  167. "order": "orderOfAppearance",
  168. "status": "standard"
  169. },
  170. "font-stretch": {
  171. "syntax": "<font-stretch-absolute>{1,2}",
  172. "media": "all",
  173. "initial": "normal",
  174. "percentages": "no",
  175. "computed": "asSpecified",
  176. "order": "uniqueOrder",
  177. "status": "standard"
  178. },
  179. "font-style": {
  180. "syntax": "normal | italic | oblique <angle>{0,2}",
  181. "media": "all",
  182. "initial": "normal",
  183. "percentages": "no",
  184. "computed": "asSpecified",
  185. "order": "uniqueOrder",
  186. "status": "standard"
  187. },
  188. "font-weight": {
  189. "syntax": "<font-weight-absolute>{1,2}",
  190. "media": "all",
  191. "initial": "normal",
  192. "percentages": "no",
  193. "computed": "asSpecified",
  194. "order": "uniqueOrder",
  195. "status": "standard"
  196. },
  197. "font-variant": {
  198. "syntax": "normal | none | [ <common-lig-values> || <discretionary-lig-values> || <historical-lig-values> || <contextual-alt-values> || stylistic(<feature-value-name>) || historical-forms || styleset(<feature-value-name>#) || character-variant(<feature-value-name>#) || swash(<feature-value-name>) || ornaments(<feature-value-name>) || annotation(<feature-value-name>) || [ small-caps | all-small-caps | petite-caps | all-petite-caps | unicase | titling-caps ] || <numeric-figure-values> || <numeric-spacing-values> || <numeric-fraction-values> || ordinal || slashed-zero || <east-asian-variant-values> || <east-asian-width-values> || ruby ]",
  199. "media": "all",
  200. "initial": "normal",
  201. "percentages": "no",
  202. "computed": "asSpecified",
  203. "order": "orderOfAppearance",
  204. "status": "standard"
  205. },
  206. "src": {
  207. "syntax": "[ <url> [ format( <string># ) ]? | local( <family-name> ) ]#",
  208. "media": "all",
  209. "initial": "n/a (required)",
  210. "percentages": "no",
  211. "computed": "asSpecified",
  212. "order": "orderOfAppearance",
  213. "status": "standard"
  214. },
  215. "unicode-range": {
  216. "syntax": "<unicode-range>#",
  217. "media": "all",
  218. "initial": "U+0-10FFFF",
  219. "percentages": "no",
  220. "computed": "asSpecified",
  221. "order": "orderOfAppearance",
  222. "status": "standard"
  223. }
  224. },
  225. "status": "standard",
  226. "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@font-face"
  227. },
  228. "@font-feature-values": {
  229. "syntax": "@font-feature-values <family-name># {\n <feature-value-block-list>\n}",
  230. "interfaces": [
  231. "CSSFontFeatureValuesRule"
  232. ],
  233. "groups": [
  234. "CSS Fonts"
  235. ],
  236. "status": "standard",
  237. "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@font-feature-values"
  238. },
  239. "@import": {
  240. "syntax": "@import [ <string> | <url> ] [ <media-query-list> ]?;",
  241. "groups": [
  242. "Media Queries"
  243. ],
  244. "status": "standard",
  245. "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@import"
  246. },
  247. "@keyframes": {
  248. "syntax": "@keyframes <keyframes-name> {\n <keyframe-block-list>\n}",
  249. "interfaces": [
  250. "CSSKeyframeRule",
  251. "CSSKeyframesRule"
  252. ],
  253. "groups": [
  254. "CSS Animations"
  255. ],
  256. "status": "standard",
  257. "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@keyframes"
  258. },
  259. "@media": {
  260. "syntax": "@media <media-query-list> {\n <group-rule-body>\n}",
  261. "interfaces": [
  262. "CSSGroupingRule",
  263. "CSSConditionRule",
  264. "CSSMediaRule",
  265. "CSSCustomMediaRule"
  266. ],
  267. "groups": [
  268. "CSS Conditional Rules",
  269. "Media Queries"
  270. ],
  271. "status": "standard",
  272. "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@media"
  273. },
  274. "@namespace": {
  275. "syntax": "@namespace <namespace-prefix>? [ <string> | <url> ];",
  276. "groups": [
  277. "CSS Namespaces"
  278. ],
  279. "status": "standard",
  280. "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@namespace"
  281. },
  282. "@page": {
  283. "syntax": "@page <page-selector-list> {\n <page-body>\n}",
  284. "interfaces": [
  285. "CSSPageRule"
  286. ],
  287. "groups": [
  288. "CSS Pages"
  289. ],
  290. "descriptors": {
  291. "bleed": {
  292. "syntax": "auto | <length>",
  293. "media": [
  294. "visual",
  295. "paged"
  296. ],
  297. "initial": "auto",
  298. "percentages": "no",
  299. "computed": "asSpecified",
  300. "order": "uniqueOrder",
  301. "status": "experimental"
  302. },
  303. "marks": {
  304. "syntax": "none | [ crop || cross ]",
  305. "media": [
  306. "visual",
  307. "paged"
  308. ],
  309. "initial": "none",
  310. "percentages": "no",
  311. "computed": "asSpecified",
  312. "order": "orderOfAppearance",
  313. "status": "experimental"
  314. }
  315. },
  316. "status": "standard",
  317. "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@page"
  318. },
  319. "@supports": {
  320. "syntax": "@supports <supports-condition> {\n <group-rule-body>\n}",
  321. "interfaces": [
  322. "CSSGroupingRule",
  323. "CSSConditionRule",
  324. "CSSSupportsRule"
  325. ],
  326. "groups": [
  327. "CSS Conditional Rules"
  328. ],
  329. "status": "standard",
  330. "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@supports"
  331. },
  332. "@viewport": {
  333. "syntax": "@viewport {\n <group-rule-body>\n}",
  334. "interfaces": [
  335. "CSSViewportRule"
  336. ],
  337. "groups": [
  338. "CSS Device Adaptation"
  339. ],
  340. "descriptors": {
  341. "height": {
  342. "syntax": "<viewport-length>{1,2}",
  343. "media": [
  344. "visual",
  345. "continuous"
  346. ],
  347. "initial": [
  348. "min-height",
  349. "max-height"
  350. ],
  351. "percentages": [
  352. "min-height",
  353. "max-height"
  354. ],
  355. "computed": [
  356. "min-height",
  357. "max-height"
  358. ],
  359. "order": "orderOfAppearance",
  360. "status": "standard"
  361. },
  362. "max-height": {
  363. "syntax": "<viewport-length>",
  364. "media": [
  365. "visual",
  366. "continuous"
  367. ],
  368. "initial": "auto",
  369. "percentages": "referToHeightOfInitialViewport",
  370. "computed": "lengthAbsolutePercentageAsSpecifiedOtherwiseAuto",
  371. "order": "uniqueOrder",
  372. "status": "standard"
  373. },
  374. "max-width": {
  375. "syntax": "<viewport-length>",
  376. "media": [
  377. "visual",
  378. "continuous"
  379. ],
  380. "initial": "auto",
  381. "percentages": "referToWidthOfInitialViewport",
  382. "computed": "lengthAbsolutePercentageAsSpecifiedOtherwiseAuto",
  383. "order": "uniqueOrder",
  384. "status": "standard"
  385. },
  386. "max-zoom": {
  387. "syntax": "auto | <number> | <percentage>",
  388. "media": [
  389. "visual",
  390. "continuous"
  391. ],
  392. "initial": "auto",
  393. "percentages": "the zoom factor itself",
  394. "computed": "autoNonNegativeOrPercentage",
  395. "order": "uniqueOrder",
  396. "status": "standard"
  397. },
  398. "min-height": {
  399. "syntax": "<viewport-length>",
  400. "media": [
  401. "visual",
  402. "continuous"
  403. ],
  404. "initial": "auto",
  405. "percentages": "referToHeightOfInitialViewport",
  406. "computed": "lengthAbsolutePercentageAsSpecifiedOtherwiseAuto",
  407. "order": "uniqueOrder",
  408. "status": "standard"
  409. },
  410. "min-width": {
  411. "syntax": "<viewport-length>",
  412. "media": [
  413. "visual",
  414. "continuous"
  415. ],
  416. "initial": "auto",
  417. "percentages": "referToWidthOfInitialViewport",
  418. "computed": "lengthAbsolutePercentageAsSpecifiedOtherwiseAuto",
  419. "order": "uniqueOrder",
  420. "status": "standard"
  421. },
  422. "min-zoom": {
  423. "syntax": "auto | <number> | <percentage>",
  424. "media": [
  425. "visual",
  426. "continuous"
  427. ],
  428. "initial": "auto",
  429. "percentages": "the zoom factor itself",
  430. "computed": "autoNonNegativeOrPercentage",
  431. "order": "uniqueOrder",
  432. "status": "standard"
  433. },
  434. "orientation": {
  435. "syntax": "auto | portrait | landscape",
  436. "media": [
  437. "visual",
  438. "continuous"
  439. ],
  440. "initial": "auto",
  441. "percentages": "referToSizeOfBoundingBox",
  442. "computed": "asSpecified",
  443. "order": "uniqueOrder",
  444. "status": "standard"
  445. },
  446. "user-zoom": {
  447. "syntax": "zoom | fixed",
  448. "media": [
  449. "visual",
  450. "continuous"
  451. ],
  452. "initial": "zoom",
  453. "percentages": "referToSizeOfBoundingBox",
  454. "computed": "asSpecified",
  455. "order": "uniqueOrder",
  456. "status": "standard"
  457. },
  458. "width": {
  459. "syntax": "<viewport-length>{1,2}",
  460. "media": [
  461. "visual",
  462. "continuous"
  463. ],
  464. "initial": [
  465. "min-width",
  466. "max-width"
  467. ],
  468. "percentages": [
  469. "min-width",
  470. "max-width"
  471. ],
  472. "computed": [
  473. "min-width",
  474. "max-width"
  475. ],
  476. "order": "orderOfAppearance",
  477. "status": "standard"
  478. },
  479. "zoom": {
  480. "syntax": "auto | <number> | <percentage>",
  481. "media": [
  482. "visual",
  483. "continuous"
  484. ],
  485. "initial": "auto",
  486. "percentages": "the zoom factor itself",
  487. "computed": "autoNonNegativeOrPercentage",
  488. "order": "uniqueOrder",
  489. "status": "standard"
  490. }
  491. },
  492. "status": "standard",
  493. "mdn_url": "https://developer.mozilla.org/docs/Web/CSS/@viewport"
  494. }
  495. }