Contents

Stable specs: CSS Snapshot 2010 2011-05-12

• CSS Level 2 Revision 1 Rec 2011-06-07

  • Cover page

  1. About the CSS 2.1 Specification
  2. Introduction to CSS 2.1
  3. Conformance: Requirements and Recommendations
  4. Syntax and basic data types
  5. Selectors
  6. Assigning property values, Cascading, and Inheritance
  7. Media types
  8. Box model
  9. Visual formatting model
  10. Visual formatting model details
  11. Visual effects
  12. Generated content, automatic numbering, and lists
  13. Paged media
  14. Colors and Backgrounds
  15. Fonts
  16. Text
  17. Tables
  18. User interface

  Appendices

  1. Aural style sheets
  2. Bibliography
  3. Changes
  4. Default style sheet for HTML 4
  5. Elaborate description of Stacking Contexts
  6. Full property table
  7. Grammar of CSS 2.1
  9. Index

• Style Attributes CR 2010-10-12

  1. Introduction
  2. Conformance
  3. Syntax and Parsing
  4. Cascading and Interpretation
  5. Acknowledgments
  6. References

• Media Queries Rec 2012-06-19

  1. Background
  2. Media Queries
  3. Syntax
     1. Error handling
  4. Media features
     1. width
     2. height
     3. device-width
     4. device-height
     5. orientation
     6. aspect-ratio
     7. device-aspect-ratio
     8. color
     9. color-index
     10. monochrome
     11. resolution
     12. scan
     13. grid
  5. Values
  6. Units
     1. Resolution
  7. Acknowledgments
  8. References

• Namespaces Module Rec 2011-09-29

  1. Introduction
  2. Conformance
  3. Declaring namespaces: the @namespace rule
     1. Syntax
     2. Scope
     3. Declaring Prefixes
  4. CSS Qualified Names
  5. Acknowledgments
  6. References

• Selectors Level 3 Rec 2011-09-29

  • 1. Introduction
    • 1.1. Dependencies
    • 1.2. Terminology
    • 1.3. Changes from CSS2
  • 2. Selectors
  • 3. Case sensitivity
  • 4. Selector syntax
  • 5. Groups of selectors
  • 6. Simple selectors
    • 6.1. Type selectors
      • 6.1.1. Type selectors and namespaces
    • 6.2. Universal selector
      • 6.2.1. Universal selector and namespaces
    • 6.3. Attribute selectors
      • 6.3.1. Attribute presence and value selectors
      • 6.3..2. Substring matching attribute selectors
      • 6.3.3. Attribute selectors and namespaces
      • 6.3.4. Default attribute values in DTDs
    • 6.4. Class selectors
    • 6.5. ID selectors
    • 6.6. Pseudo-classes
      • 6.6.1. Dynamic pseudo-classes
        • 6.6.1.1. The link pseudo-classes: :link and :visited
        • 6.6.1.2. The user action pseudo-classes :hover, :active, and :focus
      • 6.6.2. The target pseudo-class :target
      • 6.6.3. The language pseudo-class :lang
      • 6.6.4. The UI element states pseudo-classes
        • 6.6.4.1. The :enabled and :disabled pseudo-classes
        • 6.6.4.2. The :checked pseudo-class
        • 6.6.4.3. The :indeterminate pseudo-class
      • 6.6.5. Structural pseudo-classes
        • 6.6.5.1. :root pseudo-class
        • 6.6.5.2. :nth-child() pseudo-class
        • 6.6.5.3. :nth-last-child() pseudo-class
        • 6.6.5.4. :nth-of-type() pseudo-class
        • 6.6.5.5. :nth-last-of-type() pseudo-class
        • 6.6.5.6. :first-child pseudo-class
        • 6.6.5.7. :last-child pseudo-class
        • 6.6.5.8. :first-of-type pseudo-class
        • 6.6.5.9. :last-of-type pseudo-class
        • 6.6.5.10. :only-child pseudo-class
        • 6.6.5.11. :only-of-type pseudo-class
        • 6.6.5.12. :empty pseudo-class
      • 6.6.7. The negation pseudo-class
  • 7. Pseudo-elements
    • 7.1. The ::first-line pseudo-element
      • 7.1.1. First formatted line definition in CSS
    • 7.2. The ::first-letter pseudo-element
      • 7.2.1. Application in CSS
    • 7.4. The ::before and ::after pseudo-elements
  • 8. Combinators
    • 8.1. Descendant combinators
    • 8.2. Child combinators
    • 8.3. Sibling combinators
      • 8.3.1. Adjacent sibling combinator
      • 8.3.2. General sibling combinator
  • 9. Calculating a selector's specificity
  • 10. The grammar of Selectors
    • 10.1. Grammar
    • 10.2. Lexical scanner
  • 11. Profiles
  • 12. Conformance and requirements
  • 13. Tests
  • 14. Acknowledgements
  • 15. References

• Color Module Level 3 Rec 2011-06-07

  • 1. Introduction
  • 2. Dependencies
  • 3. Color properties
    • 3.1. Foreground color: the 'color' property
    • 3.2. Transparency: the 'opacity' property
  • 4. Color units
    • 4.1. Basic color keywords
    • 4.2. Numerical color values
      • 4.2.1. RGB color values
      • 4.2.2. RGBA color values
      • 4.2.3. 'transparent' color keyword
      • 4.2.4. HSL color values
        • 4.2.4.1. HSL Examples
      • 4.2.5. HSLA color values
    • 4.3. Extended color keywords
    • 4.4. 'currentColor' color keyword
    • 4.5. CSS System Colors
      • 4.5.1. CSS2 System Colors
    • 4.6. Notes on using colors
  • 5. Simple alpha compositing
  • 6. Sample style sheet for (X)HTML
  • 7. Profiles
  • 8. Test Suite
  • 9. Call for Implementations of dropped features
  • 10. Acknowledgments
  • 11. Changes
  • 12. References
  • Index
  • Property index

Work in Progress

• Editor's Drafts

Testing

• Backgrounds and Borders Module Level 3 CR 2012-07-24

  • 1. Introduction
  • 2. Values and Interactions
    • 2.1 Module Interactions
    • 2.2 Value Types
    • 2.3 Animated Values
  • 3. Backgrounds
    • 3.1 Layering Multiple Background Images
    • 3.2 Base Color: the ‘background-color’ property
    • 3.3 Image Sources: the ‘background-image’ property
    • 3.4 Tiling Images: the ‘background-repeat’ property
    • 3.5 Affixing Images: the ‘background-attachment’ property
    • 3.6 Positioning Images: the ‘background-position’ property
    • 3.7 Painting Area: the ‘background-clip’ property
    • 3.8 Positioning Area: the ‘background-origin’ property
    • 3.9 Sizing Images: the ‘background-size’ property
    • 3.10 Backgrounds Shorthand: the ‘background’ shorthand property
    • 3.11 Backgrounds of Special Elements
  • 4. Borders
    • 4.1. Line Colors: the ‘border-color’ properties
    • 4.2. Line patterns: the ‘border-style’ properties
    • 4.3. Line Thickness: te ‘border-width’ properties
    • 4.4. Border Shorthand Properties
  • 5. Rounded Corners
    • 5.1. Curve Radii: the ‘border-radius’ properties
    • 5.2. Corner Shaping
    • 5.3. Corner Clipping
    • 5.4. Corner and Style Transitions
    • 5.5. Overlapping Curves
    • 5.6. Effect on Tables
  • 6. Border Images
    • 6.1. Image Source: the ‘border-image-source’ property
    • 6.2. Image Slicing: the ‘border-image-slice’ property
    • 6.3. Drawing Areas: the ‘border-image-width’ property
    • 6.4. Edge Overhang: the ‘border-image-outset’ property
    • 6.5. Image Tiling: the ‘border-image-repeat’ property
    • 6.6. Drawing the Border Image
    • 6.7. Border Image Shorthand: the ‘border-image’ shorthand
    • 6.8. Effect on Tables
  • 7. Miscellaneous Effects
    • 7.1. Drawing at Breaks: the ‘box-decoration-break’ property
    • 7.2. Drop Shadows: the ‘box-shadow’ property
  • 8. Definitions
    • 8.1. Glossary
    • 8.2. Conformance
    • 8.3. Levels
      • 8.3.1. CSS Level 1
      • 8.3.2. CSS Level 2
      • 8.3.3. CSS Level 3
    • 8.4. CR Exit Criteria
  • 9. Changes
  • 10. Acknowledgments
  • 11. References
  • Property index
  • Index

• Image Values and Replaced Content Module Level 3 CR 2012-04-17

  • 1. Introduction
  • 2. Resolution Units: the <resolution> type
  • 3. Image Values: the <image> type
    • 3.1. Image References and Image Slices: the ‘<url>’ type and ‘url()’ notation
    • 3.2. Image Fallbacks and Annotations: the ‘image()’ notation
      • 3.2.1. Image Fragments
      • 3.2.2. Image Fallbacks
      • 3.2.3. Solid-color Images
  • 4. Gradients
    • 4.1. Linear Gradients: the ‘linear-gradient()’ notation
    • 4.2. Radial Gradients: the ‘radial-gradient()’ notation
    • 4.3. Repeating Gradients: the ‘repeating-linear-gradient()’ and ‘repeating-radial-gradient()’ notations
    • 4.4. Gradient Color-Stops
  • 5. Sizing Images and Objects in CSS
    • 5.1. Object-Sizing Terminology
    • 5.2. CSS⇋Object Negotiation
    • 5.3. Concrete Object Size Resolution
      • 5.3.1. Default Sizing Algorithm
      • 5.3.2. Cover and Contain Constraint Sizing
    • 5.4. Examples of CSS Object Sizing
    • 5.5. Sizing Objects: the ‘object-fit’ property
    • 5.6. Positioning Objects: the ‘object-position’ property
  • 6. Image Processing
    • 6.1. Overriding Image Resolutions: the ‘image-resolution’ property
    • 6.2. Orienting an Image on the Page: the ‘image-orientation’ property
  • 7. Conformance
  • Acknowledgments
  • References
  • Index
  • Property index

• Marquee Module Level 3 CR 2008-12-05

  • 1. Dependencies on other modules
  • 2. Introduction
  • 3. How to read this specification
  • 4. Terminology
  • 5. The ‘overflow-style’ property
  • 6. The ‘marquee-style’ property
  • 7. The ‘marquee-play-count’ property
  • 8. The ‘marquee-direction’ property
  • 9. The ‘marquee-speed’ property
  • 10. Conformance
  • 11. Acknowledgments
  • 12. Changes
  • References
  • Index
  • Property index

• Multi-column Layout Module CR 2011-04-12

  • 1. Introduction
  • 2. The multi-column model
  • 3. The number and width of columns
    • 3.1. ‘column-width’
    • 3.2. ‘column-count’
    • 3.3. ‘columns’
    • 3.4. Pseudo-algorithm
    • 3.5. Stacking context
  • 4. Column gaps and rules
    • 4.1. ‘column-gap’
    • 4.2. ‘column-rule-color’
    • 4.3. ‘column-rule-style’
    • 4.4. ‘column-rule-width’
    • 4.5. ‘column-rule’
  • 5. Column breaks
    • 5.1. ‘break-before’, ‘break-after’, ‘break-inside’
  • 6. Spanning columns
    • 6.1. ‘column-span’
  • 7. Filling columns
    • 7.1. ‘column-fill’
  • 8. Overflow and multi-column elements
    • 8.1. Overflow inside multicol elements
    • 8.2. Pagination and overflow outside multicol elements
  • 9. Conformance
  • Acknowledgments
  • References
  • Index
  • Property index

• Speech Module CR 2012-03-20

  • 1. Introduction, design goals
  • 2. Background information, CSS 2.1
  • 3. Relationship with SSML
  • 4. CSS Values
  • 5. Example
  • 6. The aural formatting model
  • 7. Mixing properties
    • 7.1. The ‘voice-volume’ property
    • 7.2. The ‘voice-balance’ property
  • 8. Speaking properties
    • 8.1. The ‘speak’ property
    • 8.2. The ‘speak-as’ property
  • 9. Pause properties
    • 9.1. The ‘pause-before’ and ‘pause-after’ properties
    • 9.2. The ‘pause’ shorthand property
    • 9.3. Collapsing pauses
  • 10. Rest properties
    • 10.1. The ‘rest-before’ and ‘rest-after’ properties
    • 10.2. The ‘rest’ shorthand property
  • 11. Cue properties
    • 11.1. The ‘cue-before’ and‘cue-after’ properties
    • 11.2. Relation between audio cues and speech synthesis volume levels
    • 11.3 The ‘cue’ shorthand property
  • 12. Voice characteristic properties
    • The ‘voice-family’ property
    • The ‘voice-rate’ property
    • The ‘voice-pitch’ property
    • The ‘voice-range’ property
    • The ‘voice-stress’ property
  • 13. Voice duration property
    • 13.1. The ‘voice-duration’ property
  • 14. List items and counters styles
  • 15. Inserted and replaced content
  • 16. Pronunciation, phonemes
  • Appendix A — Property index
  • Appendix B — Index
  • Appendix C — Definitions
  • Appendix D — Acknowledgements
  • Appendix E — Changes from previous draft
  • Appendix F — References

• Values and Units Module Level 3 CR 2013-04-04

  • 1. Introduction
  • 2. Value Definition Syntax
    • 2.1. Component value types
    • 2.2. Component value combinators
    • 2.3. Component value multipliers
    • 2.4. Component values and white space
    • 2.5. Property value examples
  • 3. Textual Data Types
    • 3.1. Pre-defined Keywords
      • 3.1.1. CSS-wide keywords: ‘initial’ and ‘inherit’
    • 3.2. Quoted Strings: the ‘<string>’ type
    • 3.3. Resource Locators: the ‘<url>’ type
  • 4. Numeric Data Types
    • 4.1. Integers: the ‘<integer>’ type
    • 4.2. Numbers: the ‘<number>’ type
    • 4.3. Percentages: the ‘<percentage>’ type
  • 5. Distance Units: the ‘<length>’ type
    • 5.1. Relative lengths
      • 5.1.1. Font-relative lengths: the ‘em’, ‘ex’, ‘ch’, ‘rem’ units
      • 5.1.2. Viewport-percentage lengths: the ‘vw’, ‘vh’, ‘vmin’, ‘vmax’ units
    • 5.2. Absolute lengths: the ‘cm’, ‘mm’, ‘in’, ‘pt’, ‘pc’, ‘px’ units
  • 6. Other Units
    • 6.1. Angles: the ‘<angle>’ type and ‘deg’, ‘grad’, ‘rad’, ‘turn’ units
    • 6.2. Times: the ‘<time>’ type and ‘s’, ‘ms’ units
    • 6.3. Frequencies: the ‘<frequency>’ type and ‘Hz’, ‘kHz’ units
    • 6.4. Resolutions: the <resolution> type and ‘dpi’, ‘dpcm’, ‘dppx’ units
  • 7. Data Types Defined Elsewhere
    • 7.1. Colors: the ‘<color>’ type
    • 7.2. Images: the ‘<image>’ type
    • 7.3. 2D Positioning: the ‘<position>’ type
  • 8. Functional Notations
    • 8.1. Mathematical Expressions: ‘calc()’
      • 8.1.1. Syntax
      • 8.1.2. Type Checking
      • 8.1.3. Computed Value
      • 8.1.4. Range Checking
    • 8.2. Toggling Between Values: ‘toggle()’
    • 8.3. Attribute References: ‘attr()’
  • 9. Appendix A: IANA Considerations
    • 9.1. Registration for the about:invalid URL scheme
  • Acknowledgments
  • Conformance
  • Changes
  • References
  • Index

• Flexible Box Layout Module CR 2012-09-18

  • 1. Introduction
  • 2. Flex Layout Box Model and Terminology
  • 3. Flex Containers: the ‘flex’ and ‘inline-flex’ ‘display’ values
  • 4. Flex Items
    • 4.1. Absolutely-Positioned Flex Items
    • 4.2. Flex Item Margins
    • 4.3. Flex Item Painting
    • 4.4. Collapsed Items
    • 4.5. Implied Minimum Size of Flex Items
  • 5. Ordering and Orientation
    • 5.1. Flex Flow Direction: the ‘flex-direction’ property
    • 5.2. Flex Line Wrapping: the ‘flex-wrap’ property
    • 5.3. Flex Direction and Wrap: the ‘flex-flow’ shorthand
    • 5.4. Display Order: the ‘order’ property
      • 5.4.1. Reordering and Accessibility
  • 6. Flex Lines
  • 7. Flexibility
    • 7.1. The ‘flex’ Shorthand
    • 7.2. Common Values of ‘flex’
    • 7.3. Components of Flexibility
      • 7.3.1. The ‘flex-grow’ property
      • 7.3.2. The ‘flex-shrink’ property
      • 7.3.3. The ‘flex-basis’ property
  • 8. Alignment
    • 8.1. Aligning with ‘auto’ margins
    • 8.2. Axis Alignment: the ‘justify-content’ property
    • 8.3. Cross-axis Alignment: the ‘align-items’ and ‘align-self’ properties
    • 8.4. Packing Flex Lines: the ‘align-content’ property
    • 8.5. Flex Baselines
  • 9. Flex Layout Algorithm
    • 9.1. Initial Setup
    • 9.2. Line Length Determination
    • 9.3. Main Size Determination
    • 9.4. Cross size determination
    • 9.5. Main-Axis Alignment
    • 9.6. Cross-Axis Alignment
    • 9.7. Resolving Flexible Lengths
  • 10. Fragmenting Flex Layout
    • 10.1. Sample Flex Fragmentation Algorithm
  • 11. Conformance
  • Acknowledgments
  • References
  • Changes
  • Property index
  • Index

Refining

• Animations WD 2013-02-19

  • 1. Introduction
  • 2. Values
  • 3. Animations
  • 4. Keyframes
    • 4.1. Timing functions for keyframes
    • 4.2. The ‘animation-name’ Property
    • 4.3. The ‘animation-duration’ Property
    • 4.4. The ‘animation-timing-function’ Property
    • 4.5. The ‘animation-iteration-count’ Property
    • 4.6. The ‘animation-direction’ Property
    • 4.7. The ‘animation-play-state’ Property
    • 4.8. The ‘animation-delay’ Property
    • 4.9. The ‘animation-fill-mode’ Property
    • 4.10. The ‘animation’ Shorthand Property
  • 5. Animation Events
    • 5.1. Interface AnimationEvent
      • 5.1.1. IDL Definition
      • 5.1.2. Attributes
    • 5.2. Types of AnimationEvent
  • 6. DOM Interfaces
    • 6.1. Interface CSSRule
      • 6.1.1. IDL Definition
    • 6.2. Interface CSSKeyframeRule
      • 6.2.1. IDL Definition
      • 6.2.2. Attributes
    • 6.3. Interface CSSKeyframesRule
      • 6.3.1. IDL Definition
      • 6.3.2. Attributes
      • 6.3.3. The appendRule method
      • 6.3.4. The deleteRule method
      • 6.3.5. The findRule method
  • 7. Acknowledgments
  • 8. References
  • Property index
  • Index

• Conditional Rules Module Level 3 CR 2013-04-04

  • 1. Introduction
  • 2. Processing of conditional group rules
  • 3. Contents of conditional group rules
  • 4. Placement of conditional group rules
  • 5. Media-specific style sheets: the ‘@media’ rule
  • 6. Feature queries: the ‘@supports’ rule
    • 6.1. Definition of support
  • 7. APIs
    • 7.1. Extensions to the CSSRule interface
    • 7.2. The CSSGroupingRule interface
    • 7.3. The CSSConditionRule interface
    • 7.4. The CSSMediaRule interface
    • 7.5. The CSSSupportsRule interface
    • 7.6. The CSS interface, and the supports() function
  • Grammar
  • 8. Conformance
  • 9. Changes
  • Acknowledgments
  • References
  • Index

• Fonts Module Level 3 WD 2013-02-12

  • 1 Introduction
  • 2 Typography Background
  • 3 Basic Font Properties
    • 3.1 Font family: the ?font-family? property
      • 3.1.1 Generic font families
    • 3.2 Font weight: the ?font-weight? property
    • 3.3 Font width: the ?font-stretch? property
    • 3.4 Font style: the ?font-style? property
    • 3.5 Font size: the ?font-size? property
    • 3.6 Relative sizing: the ?font-size-adjust? property
    • 3.7 Shorthand font property: the ?font? property
    • 3.8 Controlling synthetic faces: the ?font-synthesis? property
  • 4 Font Resources
    • 4.1 The @font-face rule
    • 4.2 Font family: the font-family descriptor
    • 4.3 Font reference: the src descriptor
    • 4.4 Font property descriptors: the font-style, font-weight, font-stretch descriptors
    • 4.5 Character range: the unicode-range descriptor
    • 4.6 Font features: the font-variant and font-feature-settings descriptors
    • 4.7 Font loading guidelines
    • 4.8 Same-origin restriction for fonts
      • 4.8.1 Default same-origin restriction
      • 4.8.2 Allowing cross-origin font loading
  • 5 Font Matching Algorithm
    • 5.1 Case sensitivity of font family names
    • 5.2 Matching font styles
    • 5.3 Cluster matching
    • 5.4 Character handling issues
    • 5.5 Font matching changes since CSS 2.1
    • 5.6 Font matching examples
  • 6 Font Feature Properties
    • 6.1 Glyph selection and positioning
    • 6.2 Language-specific display
    • 6.3 Kerning: the font-kerning property
    • 6.4 Ligatures: the font-variant-ligatures property
    • 6.5 Subscript and superscript forms: the font-variant-position property
    • 6.6 Capitalization: the font-variant-caps property
    • 6.7 Numerical formatting: the font-variant-numeric property
    • 6.8 Alternates and swashes: the font-variant-alternates property
    • 6.9 Defining font specific alternates: the @font-feature-values rule
    • 6.10 East Asian text rendering: the font-variant-east-asian property
    • 6.11 Overall shorthand for font rendering: the font-variant property
    • 6.12 Low-level font feature settings control: the font-feature-settings property
    • 6.13 Font language override: the font-language-override property
  • 7 Font Feature Resolution
    • 7.1 Default features
    • 7.2 Feature precedence
    • 7.3 Feature precedence examples
  • 8 Object Model
    • 8.1 The CSSFontFaceRule interface
    • 8.2 The CSSFontFeatureValuesRule interface
  • 9 Font Load Events
    • 9.1 Extension to the document interface
    • 9.2 The FontLoader Interface
      • 9.2.1 Events
      • 9.2.2 Methods
    • 9.3 Font load event examples
  • Appendix A: Mapping platform font properties to CSS properties
  • Changes
  • Acknowledgments
  • Conformance
  • References
  • Index
  • Property index

• Counter Styles Level 3 WD 2013-02-21

  • 1. Introduction
  • 2. Counter Styles
  • 3. Defining Custom Counter Styles: the ‘@counter-style’ rule
    • 3.1. Counter algorithms: the ‘system’ descriptor
      • 3.1.1. Cycling Symbols: the ‘cyclic’ system
      • 3.1.2. Exhaustible Symbols: the ‘fixed’ system
      • 3.1.3. Repeating Symbols: the ‘symbolic’ system
      • 3.1.4. Bijective Numerals: the ‘alphabetic’ system
      • 3.1.5. Positional Numerals: the ‘numeric’ system
      • 3.1.6. Accumulating Numerals: the ‘additive’ system
      • 3.1.7. Tweaking Existing Counter Styles: the ‘override’ system
    • 3.2. Formatting negative values: the ‘negative’ descriptor
    • 3.3. Symbols before the marker: the ‘prefix’ descriptor
    • 3.4. Symbols after the marker: the ‘suffix’ descriptor
    • 3.5. Limiting the counter scope: the ‘range’ descriptor
    • 3.6. Zero-Padding and Constant-Width Representations: the ‘width’ descriptor
    • 3.7. Defining fallback: the ‘fallback’ descriptor
    • 3.8. Marker characters: the ‘symbols’ and ‘additive-symbols’ descriptors
    • 3.9. Speech Synthesis: the ‘speak-as’ descriptor
  • 4. Defining Anonymous Counter Styles: the ‘symbols()’ function
  • 5. Simple Predefined Counter Styles
    • 5.1. Numeric: ‘decimal’, ‘decimal-leading-zero’, ‘cjk-decimal’, ‘lower-roman’, ‘upper-roman’, ‘armenian’, ‘georgian’, ‘hebrew’
    • 5.2. Alphabetic: ‘lower-alpha’, ‘lower-latin’, ‘upper-alpha’, ‘upper-latin’, ‘lower-greek’, ‘hiragana’, ‘hiragana-iroha’, ‘katakana’, ‘katakana-iroha’
    • 5.3. Symbolic: ‘disc’, ‘circle’, ‘square’, ‘disclosure-open’, ‘disclosure-closed’
  • 6. Complex Predefined Counter Styles
    • 6.1. Longhand East Asian Counter Styles: ‘japanese-informal’, ‘japanese-formal’, ‘korean-hangul-formal’, ‘korean-hanja-informal’, ‘korean-hanja-formal’, ‘simp-chinese-informal’, ‘simp-chinese-formal’, ‘trad-chinese-informal’, ‘trad-chinese-formal’
      • 6.1.1. Limited-range Implementation (required)
      • 6.1.2. Extended Implementation (optional)
    • 6.2. Ethiopic Numeric Counter Style: ‘ethiopic-numeric’
  • 7. APIs
    • 7.1. Extensions to the CSSRule interface
    • 7.2. The CSSCounterStyleRule interface
  • 8. Sample style sheet for HTML
  • Changes
  • Acknowledgments
  • Conformance
  • References
  • Descriptor index
  • Index

• Text Module Level 3 WD 2012-11-13

  • 1. Introduction
  • 2. Transforming Text
    • 2.1. Transforming Text: the ‘text-transform’ property
  • 3. White Space and Wrapping: the ‘white-space’ property
  • 4. White Space Processing Details
    • 4.1. The White Space Processing Rules
      • 4.1.1. Example of bidirectionality with white space collapsing
      • 4.1.2. Line Break Transformation Rules
    • 4.2. Tab Character Size: the ‘tab-size’ property
  • 5. Line Breaking and Word Boundaries
    • 5.1. Line Breaking Details
    • 5.2. Breaking Rules for Punctuation: the ‘line-break’ property
    • 5.3. Breaking Rules for Letters: the ‘word-break’ property
  • 6. Hyphenation
    • 6.1. Hyphenation Control: the ‘hyphens’ property
    • 6.2. Overflow Wrapping: the ‘word-wrap’/‘overflow-wrap’ property
  • 7. Alignment and Justification
    • 7.1. Text Alignment: the ‘text-align’ property
      • 7.1.1. Bidirectionality and Line Boxes
      • 7.1.2. Character-based Alignment in a Table Column
    • 7.2. Last Line Alignment: the ‘text-align-last’ property
    • 7.3. Justification Method: the ‘text-justify’ property
  • 8. Spacing
    • 8.1. Word Spacing: the ‘word-spacing’ property
    • 8.2. Tracking: the ‘letter-spacing’ property
  • 9. Edge Effects
    • 9.1 First Line Indentation: the ‘text-indent’ property
    • 9.2 Hanging Punctuation: the ‘hanging-punctuation’ property
  • 10. Conformance
  • Appendix A: Acknowledgements
  • Appendix B: References
  • Appendix C: Changes
  • Appendix D: Default UA Stylesheet
  • Appendix E: Scripts and Spacing
  • Appendix F: Small Kana
  • Appendix G: Text Processing Order of Operations
  • Appendix H: Full Property Index

• Fragmentation Module Level 3 WD 2012-08-23

  • 1. Introduction
  • 2. Fragmentation Model and Terminology
  • 3. Controlling Breaks
    • 3.1. Forced breaks and keep-together: the ‘break-before’, ‘break-after’, ‘break-inside’ properties
    • 3.2. Breaks Between Lines: ‘orphans’, ‘widows’
    • 3.3. Page Break Aliases: the ‘page-break-before’, ‘page-break-after’, and ‘page-break-inside’ properties
  • 4. Rules for Breaking
    • 4.1. Possible Break Points
    • 4.2. Types of Breaks
    • 4.3. Forced breaks
    • 4.4. Unforced Breaks
    • 4.5. Optimizing Unforced Breaks
  • 5. Box Model for Breaking
    • 5.1. Breaking into Varying-size Fragmentainers
    • 5.2. Margins at Breaks
    • 5.3. Splitting Boxes at Breaks
  • 6. Conformance
  • Changes
  • Acknowledgments
  • References
  • Index
  • Property index

• Text Decoration Module Level 3 WD 2013-01-03

  • 1. Introduction
  • 2. Line Decoration: Underline, Overline, and Strike-Through
    • 2.1. Text Decoration Lines: the ‘text-decoration-line’ property
    • 2.2. Text Decoration Color: the ‘text-decoration-color’ property
    • 2.3. Text Decoration Style: the ‘text-decoration-style’ property
    • 2.4. Text Decoration Shorthand: the ‘text-decoration’ property
    • 2.5. Text Decoration Line Continuity: the ‘text-decoration-skip’ property
    • 2.6. Text Underline Position: the ‘text-underline-position’ property
    • 2.7. Determining the Position and Thickness of Line Decorations
  • 3. Emphasis Marks
    • 3.1. Emphasis Mark Style: the ‘text-emphasis-style’ property
    • 3.2. Emphasis Mark Color: the ‘text-emphasis-color’ property
    • 3.3. Emphasis Mark Shorthand: the ‘text-emphasis’ property
    • 3.4. Emphasis Mark Position: the ‘text-emphasis-position’ property
  • 4. Text Shadows: the ‘text-shadow’ property
  • 5. Conformance
  • Appendix A: Acknowledgements
  • Appendix B: References
  • Appendix C: Changes
  • Appendix D: Default UA Stylesheet

• Transforms WD 2012-09-11

  • 1. Introduction
  • 2. Module Interactions
  • 3. CSS Values
  • 4. Definitions
  • 5. Two Dimensional Subset
  • 6. The Transform Rendering Model
    • 6.1. 3D Transform Rendering
    • 6.2. Processing of Perspective-Transformed Boxes
  • 7. The ‘transform’ Property
  • 8. The ‘transform-origin’ Property
  • 9. The ‘transform-style’ Property
  • 10. The ‘perspective’ Property
  • 11. The ‘perspective-origin’ Property
  • 12. The ‘backface-visibility’ Property
  • 13. The SVG ‘transform’ Attribute
    • 13.1. SVG ‘transform’ attribute specificity
    • 13.2. Syntax of the SVG ‘transform’ attribute
      • 13.2.1. Transform List
      • 13.2.2. Functional Notation
      • 13.2.3. SVG Data Types
        • 13.2.3.1. The <translation-value> and <length> type
        • 13.2.3.2. The <angle> type
        • 13.2.3.3. The <number> type
    • 13.3. The SVG ‘gradientTransform’ and ‘patternTransform’ attributes
    • 13.4. SVG transform functions
    • 13.5. SVG and 3D transform functions
    • 13.6. User coordinate space
    • 13.7. SVG DOM interface for the ‘transform’ attribute
  • 14. SVG Animation
    • 14.1. The ‘animate’ and ‘set’ element
    • 14.2. Neutral element for addition
    • 14.3. The SVG ‘attributeName’ attribute
  • 15. The Transform Functions
    • 15.1. 2D Transform Functions
    • 15.2. 3D Transform Functions
  • 16. The Transform Function Lists
  • 17. Interpolation of Transforms
  • 18. Transform function primitives and derivatives
  • 19. Interpolation of primitives and derived transform functions
  • 20. Interpolation of Matrices
    • 20.1. Decomposing the Matrix
    • 20.2. Interpolation of decomposed matrix values
    • 20.3. Recomposing the Matrix
  • 21. Mathematical Description of Transform Functions
  • 22. References
  • Property index
  • Index

• Transitions WD 2013-02-12

  • 1. Introduction
  • 2. Transitions
    • 2.1. The ‘transition-property’ Property
    • 2.2. The ‘transition-duration’ Property
    • 2.3. The ‘transition-timing-function’ Property
    • 2.4. The ‘transition-delay’ Property
    • 2.5. The ‘transition’ Shorthand Property
  • 3. Starting of transitions
  • 4. Automatically reversing interrupted transitions
  • 5. Transition Events
  • 6. Animation of property types
  • 7. Animatable properties
    • 7.1. Properties from CSS
    • 7.2. Properties from SVG
  • 8. Acknowledgments
  • 9. References
  • Property index
  • Index

• Custom Properties for Cascading Variables Module Level 1 WD 2013-03-12

  • 1. Introduction
  • 2. Defining Custom Properties: the ‘var-*’ family of properties
  • 3. Using Cascading Variables: the ‘var()’ notation
    • 3.1. Invalid Variables
  • 4. APIs
    • 4.1. Extensions to the CSSStyleDeclaration Interface
      • 4.1.1. Serializing Custom Properties
    • 4.2. The CSSVariablesDeclaration Interface
  • 5. Changes
  • 6. Acknowledgments
  • 7. Conformance
  • References
  • Index
  • Property index

• Writing Modes Module Level 3 WD 2012-11-15

  • 1. Introduction to Writing Modes
  • 2. Inline Direction and Bidirectionality
    • 2.1. Specifying Directionality: the ‘direction’ property
    • 2.2. Embeddings and Overrides: the ‘unicode-bidi’ property
    • 2.3. Example of Bidirectional Text
    • 2.4. Box model for inline elements in bidirectional context
  • 3. Introduction to Vertical Text
    • 3.1. Block Flow Direction: the ‘writing-mode’ property
      • 3.1.1. SVG1.1 ‘writing-mode’ Values
  • 4. Inline-level Alignment
    • 4.1. Introduction to Baselines
    • 4.2. Text Baselines
    • 4.3. Atomic Inline Baselines
    • 4.4. Baseline Alignment
  • 5. Introduction to Vertical Text Layout
    • 5.1. Orienting Text: the ‘text-orientation’ property
      • 5.1.1. Mixed Vertical Orientations
      • 5.1.2. Vertical Typesetting and Font Features
  • 6. Abstract Box Terminology
    • 6.1. Abstract Dimensions
    • 6.2. Flow-relative Directions
    • 6.3. Line-relative Directions
    • 6.4. Abstract-to-Physical Mappings
  • 7. Abstract Box Layout
    • 7.1. Principles of Layout in Vertical Writing Modes
    • 7.2. Dimensional Mapping
    • 7.3. Orthogonal Flows
      • 7.3.1. Auto-sizing in Orthogonal Flows
      • 7.3.2. Multi-column Layout in Orthogonal Flows
      • 7.3.3. Fragmenting Orthogonal Flows
    • 7.4. Flow-Relative Mappings
    • 7.5. Line-Relative Mappings
    • 7.6. Purely Physical Mappings
    • 7.7. Table Caption Mappings: the ‘caption-side’ keywords
  • 8. Page Flow: the page progression direction
  • 9. Glyph Composition
    • 9.1. Horizontal-in-Vertical Composition: the ‘text-combine-horizontal’ property
  • Changes
  • 10. Conformance
  • Acknowledgements
  • Appendix A. Characters and Properties
  • Appendix B: Bidi Rules for HTML 4
  • Appendix C: Vertical Scripts in Unicode
  • References
  • Property Index

Revising

• Cascading and inheritance Level 3 WD 2013-01-03

  • 1. Introduction
  • 2. Importing style sheets: the ‘@import’ rule
    • 2.1. Content-Type of imported stylesheets
  • 3. Shorthand Properties
    • 3.1. Resetting All Properties: the ‘all’ property
  • 4. Cascading and Inheritance
    • 4.1. Filtering Declarations
    • 4.2. Cascading Declarations
      • 4.2.1. Cascading Origins
      • 4.2.2. ‘!important’ rules
      • 4.2.3. Precedence of Non-CSS Presentational Hints
      • 4.2.4. The Cascaded Value
    • 4.3. Inheritance and Defaulting
      • 4.3.1. Initial value: the ‘initial’ keyword
      • 4.3.2. Inheritance: the ‘inherit’ keyword
      • 4.3.3. Rolling back the cascade: the ‘default’ keyword
  • 5. Stages of Value Computation
    • 5.1. Finding the specified value
    • 5.2. Finding the computed value
    • 5.3. Finding the used value
    • 5.4. Finding the actual value
    • 5.5. Examples
  • 6. Conformance
  • 7. Changes
  • Acknowledgments
  • References
  • Index
  • Property index

• Paged Media Module Level 3 WD 2013-03-14

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• Basic User Interface Module Level 3 WD 2012-01-17

  • 1. Introduction
  • 2. Conformance
  • 3. Dependencies on other modules
  • 4. User Interface Selectors
    • 4.1. User interface states: pseudo-classes
      • 4.1.1. :active details
      • 4.1.2. The indeterminate-value pseudo-class ‘:indeterminate’
      • 4.1.3. :default
      • 4.1.4. :valid and :invalid
      • 4.1.5. :in-range and :out-of-range
      • 4.1.6. :required and :optional
      • 4.1.7. :read-only and :read-write
    • 4.2. User interface element fragments: pseudo-elements
      • 4.2.1. ::value
      • 4.2.2. ::choices
      • 4.2.3. ::repeat-item
      • 4.2.4. ::repeat-index
  • 5. Element icons
    • 5.1. ‘content’ property addition
    • 5.2. ‘icon’ property
  • 6. Box Model addition
    • 6.1. ‘box-sizing’ property
  • 7. Outline properties
    • 7.1. ‘outline’ property
    • 7.2. ‘outline-width’ property
    • 7.3. ‘outline-style’ property
    • 7.4. ‘outline-color’ property
    • 7.5. ‘outline-offset’ property
  • 8. Resizing & Overflow
    • 8.1. ‘resize’ property
    • 8.2. Overflow Ellipsis: the ‘text-overflow’ property
  • 9. Pointing Devices and Keyboards
    • 9.1. Pointer interaction
      • 9.1.1. ‘cursor’ property
    • 9.2. Keyboard control
      • 9.2.1. Sequential navigation order: the ‘nav-index’ property
      • 9.2.2. Directional focus navigation: the ‘nav-up’, ‘nav-right’, ‘nav-down’, ‘nav-left’ properties
      • 9.2.3. Input method editor: the ‘ime-mode’ property
  • Appendix A. Acknowledgments
  • Appendix B. Bibiliography
  • Appendix C. Changes
  • Appendix D. Default style sheet additions for HTML
  • Appendix E: Test Suite
  • Index
  • Property index

• CSSOM View Module WD 2011-08-04

  • 1 Background
  • 2 Conformance
  • 3 Terminology
    • 3.1 CSS pixels
  • 4 Extensions to the Window Interface
    • 4.1 The MediaQueryList Interface
    • 4.2 The Screen Interface
  • 5 Extensions to the Document Interface
    • 5.1 The CaretPosition Interface
  • 6 Extensions to the Element Interface
    • 6.1 The getClientRects() and getBoundingClientRect() methods
    • 6.2 The scrollTop, scrollLeft, scrollWidth, and scrollHeight attributes
    • 6.3 The clientTop, clientLeft, clientWidth, and clientHeight attributes
  • 7 Extensions to the HTMLElement Interface
    • 7.1 The offsetParent, offsetTop, offsetLeft, offsetWidth, and offsetHeight attributes
  • 8 Extensions to the Range Interface
  • 9 Extensions to the MouseEvent Interface
  • 10 Rectangles
    • 10.1 The ClientRectList Interface
    • 10.2 The ClientRect Interface
  • References
  • Acknowledgments

Exploring

• Box Alignment Module Level 3 WD 2013-05-13

• Backgrounds and Borders Level 4

• Compositing and Blending 1.0 WD 2012-08-16

• Device Adaptation WD 2011-09-15

• Exclusions Module Level 1 WD 2013-05-28

• Exclusions and Shapes Module Level 3 WD 2012-05-03

• Filter Effects 1.0 WD 2013-05-23

• Generated Content for Paged Media Module WD 2011-11-29

• Grid Layout WD 2013-04-02

• Template Layout Module WD 2011-11-29

• Intrinsic & Extrinsic Sizing Module Level 3 WD 2012-09-27

• Line Grid

• Lists and Counters Module Level 3 WD 2011-05-24

• Positioned Layout Module Level 3 WD 2012-02-07

• Presentation Levels WD 2003-08-13

• Regions Module Level 3 WD 2013-05-28

• Tables Level 3

• Selectors Level 4 WD 2013-05-02

• Object Model WD 2011-07-12

• Masking WD 2012-11-15

• Overflow Module Level 3 WD 2013-04-18

Rewriting

• Basic Box Model Level 3 WD 2007-08-09

• Generated and Replaced Content Module WD 2003-05-14

• Line Layout Level 3 WD 2002-05-15

• Ruby Module WD 2011-06-30

• Syntax Level 3 WD 2003-08-13

Abandoned

• Behavioral Extensions to CSS WD 2007-10-19

• Hyperlink Presentation Module WD 2004-02-24

• Grid Positioning Module Level 3 WD 2007-09-05

Related

• CSS Techniques for Web Content Accessibility Guidelines 1.0 Note 2000-11-06

• Associating Style Sheets with XML documents 1.0 (Second Edition) Rec 2010-10-28

• The 'view-mode' Media Feature Rec 2012-06-19

• Selectors API Level 1 Rec 2013-02-21

• Selectors API Level 2 WD 2012-06-28

Other

• Test Suites

  • Media Queries Level 3
  • Selectors Level 3
  • CSS Level 2.1
  • Color Level 3
  • Namespaces
  • Paged Media Level 3
  • Mobile Profile 1.0
  • Print Profile 1.0
  • CSS Level 1

• Profiles

  • Mobile Profile 2.0 CR 2008-12-10
  • Print Profile Note 2013-03-14
  • TV Profile 1.0 CR 2003-05-14