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  1. Webtechnologien für Entwickler
  2. CSS
  3. CSS Namensräume

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In this article

  • Referenz
  • Anleitungen
  • Spezifikationen
  • Browser Kompatibilität

Related Topics

  1. Learn CSS
  2. CSS first steps
    1. CSS first steps overview
    2. What is CSS? (en-US)
    3. Getting started with CSS (en-US)
    4. How CSS is structured
    5. How CSS works
    6. Using your new knowledge (en-US)
  3. CSS building blocks
    1. CSS building blocks overview
    2. Cascade and inheritance
    3. CSS selectors
    4. The box model (en-US)
    5. Backgrounds and borders (en-US)
    6. Handling different text directions (en-US)
    7. Overflowing content (en-US)
    8. Values and units (en-US)
    9. Sizing items in CSS (en-US)
    10. Images, media, and form elements (en-US)
    11. Styling tables (en-US)
    12. Debugging CSS (en-US)
    13. Organizing your CSS
  4. Gestaltung von Text
    1. Gestaltung von Text — Übersicht
    2. Texte gestalten
    3. Listen gestalten (en-US)
    4. Links gestalten (en-US)
    5. Web-Schriftarten (en-US)
    6. Aufgabe: Webseite für eine Schule (en-US)
  5. Layout mit CSS
    1. Layout mit CSS — Überblick
    2. Introduction to CSS layout (en-US)
    3. Normal Flow (en-US)
    4. Flexboxen
    5. Grid (en-US)
    6. Float (en-US)
    7. Positionierung (en-US)
    8. Multiple-column Layout (en-US)
    9. Responsive design (en-US)
    10. Beginner's guide to media queries (en-US)
    11. Legacy Layout Methods (en-US)
    12. Supporting Older Browsers (en-US)
    13. Fundamental Layout Comprehension (en-US)
  6. Reference
  7. Modules
    1. Compositing and Blending
    2. CSS Animations
    3. CSS Backgrounds and Borders
    4. CSS Basic User Interface
    5. CSS Box Model
    6. CSS Charsets
    7. CSS Colors
    8. CSS Multi-column Layout
    9. CSS Conditional Rules
    10. CSS Counter Styles (en-US)
    11. CSS Device Adaptation
    12. CSS Display (en-US)
    13. CSS Flexible Box Layout
    14. CSS Fonts
    15. CSS Fragmentation (en-US)
    16. CSS Generated Content
    17. CSS Grid Layout
    18. Experimental CSS Houdini (en-US)
    19. CSS Images
    20. CSS Lists
    21. CSS Logical Properties and Values
    22. CSS Masking
    23. CSS Miscellaneous (en-US)
    24. Experimental CSS Motion Path
    25. CSS Namespaces
    26. CSS Paged Media (en-US)
    27. CSS Positioned Layout
    28. CSS Ruby Layout
    29. CSS Scroll Snap (en-US)
    30. CSS Scroll Snap Points (en-US)
    31. CSS Scrollbars (en-US)
    32. CSS selectors
    33. CSS Shapes
    34. CSS Table
    35. CSS Text
    36. CSS Text Decoration
    37. CSS Transforms
    38. CSS Transitions
    39. CSS data types
    40. CSS Custom Properties for Cascading Variables (en-US)
    41. CSS Writing Modes
    42. CSSOM View
    43. Filter Effects (en-US)
    44. Media queries
    45. Pseudo-classes
    46. Pseudo-elements
    47. CSS reference
  8. Properties
    1. accent-color (en-US)
    2. align-content
    3. align-items
    4. align-self
    5. all
    6. animation
    7. animation-delay
    8. animation-direction
    9. animation-duration
    10. animation-fill-mode
    11. animation-iteration-count
    12. animation-name
    13. animation-play-state
    14. animation-timeline (en-US)
    15. animation-timing-function
    16. appearance
    17. aspect-ratio (en-US)
    18. backdrop-filter
    19. backface-visibility
    20. background
    21. background-attachment
    22. background-blend-mode
    23. background-clip
    24. background-color
    25. background-image
    26. background-origin
    27. background-position
    28. background-position-x (en-US)
    29. background-position-y (en-US)
    30. background-repeat
    31. background-size
    32. block-size (en-US)
    33. border
    34. border-block (en-US)
    35. border-block-color (en-US)
    36. border-block-end (en-US)
    37. border-block-end-color (en-US)
    38. border-block-end-style (en-US)
    39. border-block-end-width (en-US)
    40. border-block-start (en-US)
    41. border-block-start-color (en-US)
    42. border-block-start-style (en-US)
    43. border-block-start-width (en-US)
    44. border-block-style (en-US)
    45. border-block-width (en-US)
    46. border-bottom
    47. border-bottom-color
    48. border-bottom-left-radius
    49. border-bottom-right-radius
    50. border-bottom-style
    51. border-bottom-width
    52. border-collapse
    53. border-color
    54. border-end-end-radius (en-US)
    55. border-end-start-radius (en-US)
    56. border-image
    57. border-image-outset
    58. border-image-repeat
    59. border-image-slice
    60. border-image-source
    61. border-image-width
    62. border-inline (en-US)
    63. border-inline-color (en-US)
    64. border-inline-end (en-US)
    65. border-inline-end-color (en-US)
    66. border-inline-end-style (en-US)
    67. border-inline-end-width (en-US)
    68. border-inline-start (en-US)
    69. border-inline-start-color (en-US)
    70. border-inline-start-style (en-US)
    71. border-inline-start-width (en-US)
    72. border-inline-style (en-US)
    73. border-inline-width (en-US)
    74. border-left
    75. border-left-color
    76. border-left-style
    77. border-left-width
    78. border-radius
    79. border-right
    80. border-right-color
    81. border-right-style
    82. border-right-width
    83. border-spacing
    84. border-start-end-radius (en-US)
    85. border-start-start-radius (en-US)
    86. border-style
    87. border-top
    88. border-top-color
    89. border-top-left-radius
    90. border-top-right-radius
    91. border-top-style
    92. border-top-width
    93. border-width
    94. bottom
    95. box-decoration-break (en-US)
    96. box-shadow
    97. box-sizing
    98. break-after
    99. break-before (en-US)
    100. break-inside
    101. caption-side
    102. caret-color (en-US)
    103. clear
    104. Deprecated clip
    105. clip-path
    106. color
    107. color-scheme (en-US)
    108. column-count
    109. column-fill
    110. column-gap (grid-column-gap)
    111. column-rule
    112. column-rule-color
    113. column-rule-style
    114. column-rule-width
    115. column-span
    116. column-width
    117. columns
    118. contain (en-US)
    119. content
    120. content-visibility (en-US)
    121. counter-increment
    122. counter-reset
    123. counter-set (en-US)
    124. cursor
    125. direction
    126. display
    127. empty-cells
    128. filter
    129. flex (en-US)
    130. flex-basis (en-US)
    131. flex-direction (en-US)
    132. flex-flow
    133. flex-grow
    134. flex-shrink
    135. flex-wrap
    136. float
    137. font
    138. font-family
    139. font-feature-settings
    140. font-kerning (en-US)
    141. font-language-override (en-US)
    142. font-optical-sizing (en-US)
    143. font-size
    144. font-size-adjust (en-US)
    145. font-stretch (en-US)
    146. font-style
    147. font-synthesis (en-US)
    148. font-variant
    149. font-variant-alternates (en-US)
    150. font-variant-caps (en-US)
    151. font-variant-east-asian (en-US)
    152. font-variant-ligatures (en-US)
    153. font-variant-numeric (en-US)
    154. font-variant-position (en-US)
    155. font-variation-settings (en-US)
    156. font-weight
    157. forced-color-adjust (en-US)
    158. gap (grid-gap)
    159. grid
    160. grid-area (en-US)
    161. grid-auto-columns (en-US)
    162. grid-auto-flow (en-US)
    163. grid-auto-rows (en-US)
    164. grid-column (en-US)
    165. grid-column-end (en-US)
    166. grid-column-start (en-US)
    167. grid-row (en-US)
    168. grid-row-end (en-US)
    169. grid-row-start (en-US)
    170. grid-template (en-US)
    171. grid-template-areas
    172. grid-template-columns (en-US)
    173. grid-template-rows (en-US)
    174. hanging-punctuation (en-US)
    175. height
    176. hyphenate-character (en-US)
    177. hyphens
    178. image-rendering
    179. Experimental image-resolution (en-US)
    180. Deprecated ime-mode (en-US)
    181. Experimental initial-letter (en-US)
    182. Experimental initial-letter-align (en-US)
    183. inline-size (en-US)
    184. inset (en-US)
    185. inset-block (en-US)
    186. inset-block-end (en-US)
    187. inset-block-start (en-US)
    188. inset-inline (en-US)
    189. inset-inline-end (en-US)
    190. inset-inline-start (en-US)
    191. isolation (en-US)
    192. justify-content
    193. justify-items (en-US)
    194. justify-self (en-US)
    195. left
    196. letter-spacing
    197. line-break
    198. line-height (en-US)
    199. line-height-step (en-US)
    200. list-style
    201. list-style-image
    202. list-style-position
    203. list-style-type
    204. margin
    205. margin-block (en-US)
    206. margin-block-end (en-US)
    207. margin-block-start (en-US)
    208. margin-bottom
    209. margin-inline (en-US)
    210. margin-inline-end (en-US)
    211. margin-inline-start (en-US)
    212. margin-left
    213. margin-right
    214. margin-top
    215. Experimental margin-trim (en-US)
    216. mask
    217. mask-border (en-US)
    218. mask-border-mode (en-US)
    219. mask-border-outset (en-US)
    220. mask-border-repeat (en-US)
    221. mask-border-slice (en-US)
    222. mask-border-source (en-US)
    223. mask-border-width (en-US)
    224. mask-clip (en-US)
    225. mask-composite (en-US)
    226. mask-image (en-US)
    227. mask-mode (en-US)
    228. mask-origin
    229. mask-position (en-US)
    230. mask-repeat
    231. mask-size (en-US)
    232. mask-type (en-US)
    233. max-block-size (en-US)
    234. max-height
    235. max-inline-size (en-US)
    236. max-width
    237. min-block-size (en-US)
    238. min-height
    239. min-inline-size (en-US)
    240. min-width
    241. mix-blend-mode
    242. object-fit
    243. object-position (en-US)
    244. offset (en-US)
    245. offset-anchor (en-US)
    246. offset-distance (en-US)
    247. offset-path (en-US)
    248. Experimental offset-position (en-US)
    249. offset-rotate (en-US)
    250. opacity
    251. order
    252. orphans
    253. outline
    254. outline-color
    255. outline-offset (en-US)
    256. outline-style (en-US)
    257. outline-width (en-US)
    258. overflow
    259. overflow-anchor (en-US)
    260. overflow-block (en-US)
    261. overflow-clip-margin (en-US)
    262. overflow-inline (en-US)
    263. overflow-wrap
    264. overflow-x (en-US)
    265. overflow-y (en-US)
    266. overscroll-behavior
    267. overscroll-behavior-block (en-US)
    268. overscroll-behavior-inline (en-US)
    269. overscroll-behavior-x (en-US)
    270. overscroll-behavior-y
    271. padding
    272. padding-block-end (en-US)
    273. padding-block-start (en-US)
    274. padding-bottom
    275. padding-inline-end (en-US)
    276. padding-inline-start (en-US)
    277. padding-left
    278. padding-right
    279. padding-top
    280. page-break-after
    281. page-break-before
    282. page-break-inside
    283. perspective (en-US)
    284. perspective-origin (en-US)
    285. place-content (en-US)
    286. place-items (en-US)
    287. place-self (en-US)
    288. pointer-events
    289. position
    290. print-color-adjust
    291. quotes
    292. resize
    293. right
    294. rotate (en-US)
    295. row-gap (grid-row-gap)
    296. ruby-align
    297. ruby-position (en-US)
    298. scale (en-US)
    299. scroll-behavior
    300. scroll-margin (en-US)
    301. scroll-margin-block (en-US)
    302. scroll-margin-block-end (en-US)
    303. scroll-margin-block-start (en-US)
    304. scroll-margin-bottom (en-US)
    305. scroll-margin-inline (en-US)
    306. scroll-margin-inline-end (en-US)
    307. scroll-margin-inline-start (en-US)
    308. scroll-margin-left (en-US)
    309. scroll-margin-right (en-US)
    310. scroll-margin-top (en-US)
    311. scroll-padding (en-US)
    312. scroll-padding-block-end (en-US)
    313. scroll-padding-block-start (en-US)
    314. scroll-padding-bottom (en-US)
    315. scroll-padding-inline (en-US)
    316. scroll-padding-inline-end (en-US)
    317. scroll-padding-inline-start (en-US)
    318. scroll-padding-left (en-US)
    319. scroll-padding-right (en-US)
    320. scroll-padding-top (en-US)
    321. scroll-snap-align (en-US)
    322. Deprecated scroll-snap-coordinate (en-US)
    323. Deprecated scroll-snap-destination (en-US)
    324. Deprecated scroll-snap-points-x (en-US)
    325. Deprecated scroll-snap-points-y (en-US)
    326. scroll-snap-type (en-US)
    327. scrollbar-color (en-US)
    328. scrollbar-width (en-US)
    329. shape-image-threshold (en-US)
    330. shape-margin (en-US)
    331. shape-outside (en-US)
    332. tab-size
    333. table-layout
    334. text-align
    335. text-align-last
    336. text-combine-upright (en-US)
    337. text-decoration
    338. text-decoration-color
    339. text-decoration-line
    340. Experimental text-decoration-skip (en-US)
    341. text-decoration-skip-ink (en-US)
    342. text-decoration-style (en-US)
    343. text-emphasis (en-US)
    344. text-emphasis-color (en-US)
    345. text-emphasis-position (en-US)
    346. text-emphasis-style (en-US)
    347. text-indent
    348. text-justify
    349. text-orientation (en-US)
    350. text-overflow
    351. text-rendering
    352. text-shadow
    353. Experimental text-size-adjust (en-US)
    354. text-transform
    355. text-underline-position
    356. top
    357. touch-action
    358. transform
    359. transform-box (en-US)
    360. transform-origin
    361. transform-style (en-US)
    362. transition
    363. transition-delay (en-US)
    364. transition-duration (en-US)
    365. transition-property
    366. transition-timing-function (en-US)
    367. translate
    368. unicode-bidi
    369. user-select
    370. vertical-align
    371. visibility
    372. white-space
    373. widows
    374. width
    375. will-change (en-US)
    376. word-break
    377. word-spacing
    378. writing-mode (en-US)
    379. z-index
  9. Selectors
    1. Adjacent sibling combinator
    2. Attribute selectors
    3. Child combinator
    4. Class selectors
    5. Experimental Column combinator (en-US)
    6. Descendant combinator (en-US)
    7. General sibling combinator (en-US)
    8. ID selectors
    9. Selector list (en-US)
    10. Type selectors
    11. Universal selectors
  10. Pseudo-classes
    1. :active
    2. :any-link (en-US)
    3. :autofill
    4. Experimental :blank (en-US)
    5. :checked (en-US)
    6. :default
    7. :defined (en-US)
    8. :dir()
    9. :disabled
    10. :empty
    11. :enabled
    12. :first
    13. :first-child
    14. :first-of-type
    15. :focus
    16. :focus-visible (en-US)
    17. :focus-within (en-US)
    18. :fullscreen
    19. :has() (en-US)
    20. :host (en-US)
    21. :host-context() (en-US)
    22. :host() (en-US)
    23. :hover
    24. :in-range
    25. :indeterminate
    26. :invalid
    27. :is() (:matches(), :any()) (en-US)
    28. :lang()
    29. :last-child
    30. :last-of-type
    31. :left (en-US)
    32. :link
    33. :not()
    34. :nth-child()
    35. :nth-last-child() (en-US)
    36. :nth-last-of-type() (en-US)
    37. :nth-of-type() (en-US)
    38. :only-child
    39. :only-of-type (en-US)
    40. :optional
    41. :out-of-range
    42. :paused (en-US)
    43. :picture-in-picture (en-US)
    44. :placeholder-shown
    45. :playing (en-US)
    46. :read-only (en-US)
    47. :read-write (en-US)
    48. :required
    49. :right (en-US)
    50. :root
    51. :scope (en-US)
    52. :target (en-US)
    53. :user-invalid (:-moz-ui-invalid)
    54. :user-valid (:-moz-ui-valid) (en-US)
    55. :valid (en-US)
    56. :visited
    57. :where() (en-US)
    58. Privacy and the :visited selector (en-US)
    59. Pseudo-classes
  11. Pseudo-elements
    1. ::after (:after)
    2. ::backdrop
    3. ::before (:before)
    4. ::cue (en-US)
    5. ::cue-region (en-US)
    6. ::file-selector-button (en-US)
    7. ::first-letter (:first-letter) (en-US)
    8. ::first-line (:first-line) (en-US)
    9. Experimental ::grammar-error (en-US)
    10. ::marker
    11. ::part() (en-US)
    12. ::placeholder (en-US)
    13. ::selection
    14. ::slotted() (en-US)
    15. Experimental ::spelling-error (en-US)
    16. ::target-text (en-US)
    17. Pseudo-elements
  12. At-rules
    1. @charset
    2. @color-profile (en-US)
    3. @counter-style (en-US)
    4. Deprecated @document
    5. @font-face (en-US)
    6. @font-feature-values (en-US)
    7. @import
    8. @keyframes
    9. @layer (en-US)
    10. @media
    11. @namespace (en-US)
    12. @page
    13. Experimental @property (en-US)
    14. Experimental @scroll-timeline (en-US)
    15. @supports (en-US)
    16. Deprecated @viewport
  13. Types
    1. <alpha-value> (en-US)
    2. <angle>
    3. <angle-percentage>
    4. <basic-shape>
    5. <blend-mode> (en-US)
    6. <color>
    7. CSS Functional Notation
    8. CSS data types
    9. <custom-ident>
    10. <dimension> (en-US)
    11. <display-box> (en-US)
    12. <display-inside> (en-US)
    13. <display-internal> (en-US)
    14. <display-legacy> (en-US)
    15. <display-listitem> (en-US)
    16. <display-outside> (en-US)
    17. <easing-function> (en-US)
    18. <filter-function> (en-US)
    19. <flex> (en-US)
    20. <frequency>
    21. <frequency-percentage> (en-US)
    22. <gradient>
    23. <hex-color> (en-US)
    24. <ident> (en-US)
    25. <image>
    26. <integer>
    27. <length>
    28. <length-percentage> (en-US)
    29. <number>
    30. <percentage>
    31. <position>
    32. <ratio>
    33. <resolution>
    34. Deprecated <shape>
    35. <string>
    36. <time>
    37. <time-percentage> (en-US)
    38. <transform-function>
    39. <translation-value> (en-US)
  14. Guides
  15. Animations
    1. Using CSS animations
  16. Backgrounds and Borders
    1. Using multiple backgrounds
    2. Resizing background images
  17. Box alignment
    1. Box alignment in block layout (en-US)
    2. Box alignment in flexbox (en-US)
    3. Box alignment in grid layout (en-US)
    4. Box alignment in multi-column layout (en-US)
  18. Box model
    1. Introduction to the CSS basic box model
    2. Mastering margin collapsing
  19. Columns
    1. Basic concepts of Multicol (en-US)
    2. Styling columns (en-US)
    3. Spanning and balancing (en-US)
    4. Handling overflow in Multicol (en-US)
    5. Content breaks in Multicol (en-US)
  20. Conditional rules
    1. Using feature queries (en-US)
  21. CSSOM view
    1. Coordinate systems (en-US)
  22. Flexboxen
    1. Basic concepts of Flexbox
    2. Comparison with other layout methods (en-US)
    3. Aligning items in a flex container
    4. Ordering flex items
    5. Controlling flex item ratios (en-US)
    6. Mastering wrapping of flex items (en-US)
    7. Typical use cases of Flexbox (en-US)
    8. Backwards compatibility of Flexbox (en-US)
  23. Flow layout
    1. Block and Inline layout in normal flow (en-US)
    2. In flow and Out of flow (en-US)
    3. Formatting contexts explained (en-US)
    4. Flow layout and writing modes (en-US)
    5. Flow layout and overflow (en-US)
  24. Fonts
    1. OpenType font features guide (en-US)
    2. Variable fonts guide (en-US)
  25. Grid
    1. Basics concepts of grid layout (en-US)
    2. Relationship to other layout methods (en-US)
    3. Line-based placement (en-US)
    4. Grid template areas (en-US)
    5. Layout using named grid lines (en-US)
    6. Auto-placement in grid layout (en-US)
    7. Box alignment in grid layout (en-US)
    8. undefined (en-US)
    9. Grid layout and accessibility (en-US)
    10. Grid Layout and progressive enhancement (en-US)
    11. Realizing common layouts using grids (en-US)
    12. Subgrid (en-US)
    13. Masonry layout (en-US)
  26. Images
    1. Using CSS gradients
  27. Lists and counters
    1. Using CSS counters
    2. Consistent list indentation
  28. Logical properties
    1. Basic concepts (en-US)
    2. Floating and positioning (en-US)
    3. undefined (en-US)
    4. Sizing (en-US)
  29. Beginner's guide to media queries
    1. Using media queries (en-US)
    2. Using media queries for accessibility (en-US)
    3. Testing media queries programmatically (en-US)
  30. Positionierung
    1. Understanding CSS z-index
  31. Scroll snap
    1. Basic concepts of scroll snap (en-US)
    2. Browser compatibility and scroll snap (en-US)
  32. Shapes
    1. Overview of shapes (en-US)
    2. Shapes from box values (en-US)
    3. Basic shapes (en-US)
    4. Shapes from images (en-US)
  33. Text
    1. Wrapping and breaking text (en-US)
  34. Transforms
    1. Using transforms
  35. Transitions
    1. Using transitions (en-US)
  36. Layout cookbook
    1. Media objects (en-US)
    2. Columns (en-US)
    3. Center an element (en-US)
    4. Sticky footers (en-US)
    5. Split navigation (en-US)
    6. Breadcrumb navigation (en-US)
    7. List group with badges (en-US)
    8. Pagination (en-US)
    9. Card (en-US)
    10. Grid wrapper (en-US)
  37. Tools
    1. Color picker
    2. Box shadow generator
    3. Border image generator

In this article

  • Referenz
  • Anleitungen
  • Spezifikationen
  • Browser Kompatibilität

CSS Namensräume

CSS Namensräume ist ein CSS Modul, das es Authoren erlaubt, XML Namensräume in CSS anzugeben.

Referenz

@-Regeln

  • @namespace (en-US)

Anleitungen

Keine.

Spezifikationen

Spezifikation Status Kommentar
CSS Namespaces Module Empfehlung Ursprüngliche Definition

Browser Kompatibilität

BCD tables only load in the browser

Last modified: 11. Feb. 2021, by MDN contributors

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