CSS Keywords

{object_name}

Commonly Used
- auto
- none
CSS Animation Module
- Direction
- Easing Functions
- Fill Modes
- Iteration Count
  - infinite
- Keyframe Name
  - none
- Keyframe Selectors
  - from
  - to
- Play State
  - paused
  - running
CSS Background and Borders Module
- Background
- Borders
  - Image
  - Style
  - Width
CSS Basic User Interface Module
- Cursor
- Outline
  - auto
  - invert
- Resize
- User Select
  - all
  - auto
  - contain
  - none
  - text
CSS Box Alignments
- Baseline Position
- Content Distribution
- Content Position
- Gap
  - normal
- Overflow Position
  - safe
  - unsafe
- Self and Items
- Vertical Align
CSS Box Model Module
- Box-edge
- Margin
  - auto
CSS Box Sizing Module
- auto
- border-box
- content-box
- max-content
- min-content
- none
CSS Cascading and Inheritance
- Cascading
  - !important
  - layer
- Defaulting
  - revert
- Wide Keywords
CSS Color Module
- Color Interpolation
  - Hue Interpolation
- Colors
  - currentColor
  - transparent
- Named Colors
- Polar Color Space
  - hsl
  - hwb
  - lch
  - oklch
- Predefined Colors
- Rectangular Color Spaces
- System Colors
CSS Compositing and Blending Module
- Blend
- Isolation
  - auto
  - isolation
- Mix Blend Mode
  - plus-darker
CSS Containment Module
- Contain
- Container Features
  - landscape
  - portrait
- Container Queries
  - none
- Container Type
- Content Visibility
CSS Counter Styles Module
- Range Descriptor
  - auto
  - infinite
- Speak-as
- System Descriptor
CSS Display Module
- Box Generation
  - contents
  - none
- Generating Marker Boxes
  - list-item
- Inner Display
- Layout-Internal Display
- Outer Display
- Precomposed Inline-level Display
CSS Easing Functions
- Cubic Bezier Easing Functions
- linear
- Step Easing Functions
  - step-end
  - step-start
- Step Position
CSS Flexible Box Layout Modlue
- Flex
  - auto
  - none
- Flex Basis
  - auto
  - content
- Flex Direction
- Flex Wrap
CSS Fonts Module
- Color Font Support
- Color Font Tech
- Default Font Metrics Overriding Descriptors
  - normal
- Font
- Font Display Descriptor
- Font Feature Properties
- Font Feature Tech
- Font Feature Value Type
- Font Format
- Font Kerning
- Font Optical Sizing
  - auto
  - none
- Font Property Descriptors
  - auto
- Font Size
- Font Size Adjust
- Font Stretch
- Font Styles
- Font Tech
- Font Variant Settings
  - normal
- Font Weight
  - 100
  - 200
  - 300
  - 400
  - 500
  - 600
  - 700
  - 800
  - 900
  - bold
  - bolder
  - lighter
  - normal
CSS Fragmentation Module
- Box Model for Breaking
  - clone
  - slice
- Controlling Breaks
  - Breaks Between Boxes
  - Breaks Within Boxes
CSS Generated Content Module
- Content
  - none
  - normal
- Quotes
- Reader
CSS Grid Layout Module
- Automatic Placement
- Placing Grid Items
  - auto
  - span
- Repeating
  - auto-fill
  - auto-fit
- Template
  - none
  - subgrid
- Track Size
CSS Image Module
- Gradients
  - Ending Shape
    - circle
    - ellipse
  - Extent Keywords
- Image Processing
- Sizing Images and Objects in CSS
CSS Inline Layout Module
- Line Sizing ans Spacing
  - normal
CSS Lists and Counters Module
- Complex Predefined Counter Styles
  - Ethiopic Numeric Counter Style
    - Ethiopic-numeric
  - Longhand East Asian Counter Styles
- Place
  - inset
- Position
  - inside
  - outside
- Simple Predefined Counter Styles
CSS Logical Properties and Values
- Flow-Relative Values
CSS Masking Module
- Mask Border Slice
  - fill
- Mask Border Width
  - auto
- Mask Composite
- Mask Layer
  - no-clip
- Mask Mode
CSS Multi-column Layout Module
- Number and Width of Columns
  - auto
- Filling Columns
- Number and Width of Columns
  - auto
- Spanning Columns
  - all
  - none
CSS Overflow Module
- Overflow
- Scroll Behavior
  - auto
  - smooth
- Scrollbar Gutter
- Text Overflow
  - clip
  - ellipsis
CSS Paged Media Module
- Bleed Descriptor
  - auto
- Marks Descriptor
- Page Breaks
  - auto
- Page Size
  - A3
  - A4
  - A5
  - B4
  - JIS-B4
  - JIS-B5
  - ledger
  - legal
  - letter
- Size Descriptor
CSS Positioned Layout Module
- Positioning Coordinates
  - auto
- Positioning Scheme
CSS Shape Module
- Box Values
- Shape Radius
  - closest-side
  - farthest-side
CSS Syntax Module
- An+B microsyntax
  - even
  - n
  - odd
CSS Text Decotarion Module
- Text Decoration Line
- Text Decoration Style
  - wave
CSS Text Module
- Alignment and Justification
  - Alignment
  - Justification
- Line Breaking and Word Bundaries
  - Hyphens
  - Word Break
- Spacing
  - normal
- Text Indent
  - each-line
  - hanging
- Transforming Text
- White Space and Wrapping
CSS Transforms Module
- Backface Visibility
  - hidden
  - visible
- Transform Style
  - flat
CSS Transitions
- all
CSS Values and Units
- 2D Positioning
- Attr Type
- Numeric Constants
CSS Will Change Module
- auto
- contents
- scroll-position
CSS Writing Modes Module
- Inline Direction and Bidirectionality
- Principal Writing Mode
  - all
  - digits
- Vertical Text Layout
- Vertical Writing Modes
CSS2
- Stacking
  - auto
- Tables
- Visibility
CSS2.1
- Clear
- Floating
Media Queries
- Media Query Modifiers
  - not
  - only
- Media Types
Motion Path Module
- Offset Rotate
  - auto
  - reverse
Scalable Vector Graphics(SVG)
- Fill Rule
  - evenodd
  - nonzero

Editing

transparent

완전한 투명을 나타낸다.

설명

rgba(0, 0, 0, 0)의 별칭으로 사용되는 값으로 볼 수 있다. CSS Level 2 전까지는 지금처럼 실제 색상 값으로 사용하는 게 아니었다. background와 border 속성에서 색상을 설정할 때 사용되는 키워드였지만 CSS Colors Level 3에서 알파채널이 추가되면서 투명을 의미하는 색상 값이 되었고 색상을 정의하는 모든 속성에서 사용이 가능하게 되었다.

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