CSS Validator
Validate your CSS files using our free css validator. When using this tool, you'll find errors and warnings that may need to be fixed in your CSS file. When you have errors in your CSS, there is a good change the webpage you are viewing will not render correctly.
Errors
Compatibility
Performance
Maintainability & Duplication
Accessibility
OOCSS
| Line | Col | Title | Description | Browser | |
|---|---|---|---|---|---|
| No syntax errors! | |||||
Note: This validator will only validate CSS, to validate HTML code please use this html validator.
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CSS & HTML References
- CSS At-Rules
- CSS Data Types
- CSS Functions
- attr
- blur
- brightness
- calc
- circle
- contrast
- drop-shadow
- ellipse
- grayscale
- hsl
- hsla
- hue-rotate
- inset
- invert
- linear-gradient
- matrix
- matrix3d
- opacity
- perspective
- polygon
- radial-gradient
- repeating-linear-gradient
- repeating-radial-gradient
- rgb
- rgba
- rotate
- rotate3d
- rotateX
- rotateY
- rotateZ
- saturate
- scale
- scale3d
- scaleX
- scaleY
- scaleZ
- sepia
- skew
- skewX
- skewY
- translate
- translate3d
- translateX
- translateY
- translateZ
- CSS Properties
- align-content
- align-items
- align-self
- all
- animation
- animation-delay
- animation-direction
- animation-duration
- animation-fill-mode
- animation-iteration-count
- animation-name
- animation-play-state
- animation-timing-function
- backface-visibility
- background
- background-attachment
- background-blend-mode
- background-clip
- background-color
- background-image
- background-origin
- background-position
- background-repeat
- background-size
- border
- border-bottom
- border-bottom-color
- border-bottom-left-radius
- border-bottom-right-radius
- border-bottom-style
- border-bottom-width
- border-collapse
- border-color
- border-image
- border-image-outset
- border-image-repeat
- border-image-slice
- border-image-source
- border-image-width
- border-left
- border-left-color
- border-left-style
- border-left-width
- border-radius
- border-right
- border-right-color
- border-right-style
- border-right-width
- border-spacing
- border-style
- border-top
- border-top-color
- border-top-left-radius
- border-top-right-radius
- border-top-style
- border-top-width
- border-width
- bottom
- box-decoration-break
- box-shadow
- box-sizing
- break-after
- break-before
- break-inside
- caption-side
- caret-color
- clear
- clip-path
- color
- column-count
- column-fill
- column-rule
- column-rule-color
- column-rule-style
- column-rule-width
- column-span
- column-width
- columns
- content
- counter-increment
- counter-reset
- counter-set
- cursor
- direction
- display
- empty-cells
- filter
- flex
- flex-basis
- flex-direction
- flex-flow
- flex-grow
- flex-shrink
- flex-wrap
- float
- font
- font-family
- font-feature-settings
- font-kerning
- font-language-override
- font-size
- font-size-adjust
- font-stretch
- font-style
- font-synthesis
- font-variant
- font-variant-alternates
- font-variant-caps
- font-variant-east-asian
- font-variant-ligatures
- font-variant-numeric
- font-variant-position
- font-weight
- grid
- grid-area
- grid-auto-columns
- grid-auto-flow
- grid-auto-rows
- grid-column
- grid-column-end
- grid-column-gap
- grid-column-start
- grid-gap
- grid-row
- grid-row-end
- grid-row-gap
- grid-row-start
- grid-template
- grid-template-areas
- grid-template-columns
- grid-template-rows
- hanging-punctuation
- height
- hyphens
- image-orientation
- justify-content
- justify-items
- justify-self
- left
- letter-spacing
- line-break
- line-height
- list-style
- list-style-image
- list-style-position
- list-style-type
- margin
- margin-bottom
- margin-left
- margin-right
- margin-top
- max-height
- max-width
- min-height
- min-width
- mix-blend-mode
- object-fit
- object-position
- opacity
- order
- orphans
- outline
- outline-color
- outline-offset
- outline-style
- outline-width
- overflow
- overflow-wrap
- overflow-x
- overflow-y
- padding
- padding-bottom
- padding-left
- padding-right
- padding-top
- perspective
- perspective-origin
- place-content
- place-items
- place-self
- position
- quotes
- resize
- right
- shape-image-threshold
- shape-margin
- shape-outside
- tab-size
- table-layout
- text-align
- text-align-last
- text-combine-upright
- text-decoration
- text-decoration-color
- text-decoration-line
- text-decoration-style
- text-emphasis
- text-emphasis-color
- text-emphasis-position
- text-emphasis-style
- text-indent
- text-justify
- text-orientation
- text-overflow
- text-shadow
- text-transform
- text-underline-position
- top
- transform
- transform-origin
- transform-style
- transition
- transition-delay
- transition-duration
- transition-property
- transition-timing-function
- unicode-bidi
- vertical-align
- visibility
- white-space
- widows
- width
- word-break
- word-spacing
- word-wrap
- writing-mode
- z-index
- CSS Pseudo Classes
- :active
- :checked
- :default
- :disabled
- :empty
- :enabled
- :first-child
- :first-of-type
- :focus
- :fullscreen
- :hover
- :in-range
- :indeterminate
- :invalid
- :lang
- :last-child
- :last-of-type
- :link
- :not
- :nth-child
- :nth-last-child
- :nth-last-of-type
- :nth-of-type
- :only-child
- :only-of-type
- :optional
- :out-of-range
- :read-only
- :read-write
- :required
- :root
- :target
- :valid
- :visited
- CSS Pseudo Elements
- HTML Tags
- a
- abbr
- address
- area
- article
- aside
- audio
- b
- base
- bdi
- bdo
- blockquote
- body
- br
- button
- canvas
- caption
- cite
- code
- col
- colgroup
- comment
- datalist
- dd
- del
- details
- dfn
- dialog
- div
- dl
- doctype
- dt
- em
- embed
- fieldset
- figcaption
- figure
- footer
- form
- h1
- h2
- h3
- h4
- h5
- h6
- head
- header
- hr
- html
- i
- iframe
- img
- input
- ins
- kbd
- keygen
- label
- legend
- li
- link
- map
- mark
- menu
- meta
- meter
- nav
- noscript
- object
- ol
- optgroup
- option
- output
- p
- param
- picture
- pre
- progress
- q
- rp
- rt
- ruby
- s
- samp
- script
- section
- select
- small
- source
- span
- strong
- style
- sub
- summary
- sup
- table
- tbody
- td
- textarea
- tfoot
- th
- thead
- time
- title
- tr
- track
- u
- ul
- var
- video
- wbr
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