<dimension> CSS type
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The <dimension> CSS data type represents a <number> with a unit attached to it, for example 10px.
CSS uses dimensions to specify distances (<length>), durations (<time>), frequencies (<frequency>), resolutions (<resolution>), and other quantities.
Syntax
The syntax of <dimension> is a <number> immediately followed by a unit which is an identifier. Unit identifiers are case insensitive.
Examples
Valid dimensions
12px 12 pixels 1rem 1 rem 1.2pt 1.2 points 2200ms 2200 milliseconds 5s 5 seconds 200hz 200 Hertz 200Hz 200 Hertz (values are case insensitive)
Invalid dimensions
12 px The unit must come immediately after the number. 12"px" Units are identifiers and therefore unquoted. 3sec The seconds unit is abbreviated "s" not "sec".
Specifications
| Specification |
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| CSS Values and Units Module Level 4 # dimensions |
Browser compatibility
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Legend
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- Full support
- Full support
See also
- CSS data types
- Learn to style HTML using CSS
- CSS distances (
<length>), durations (<time>), frequencies (<frequency>), and resolutions (<resolution>)