<dimension>
A general term for any CSS value that combines a number with a unit (like '10px', '2em', or '50%').
Syntax
/* Usage Example */
.box {
/* Examples of different dimension types */
width: 100px; /* length */
font-size: 1.2rem; /* length */
opacity: 0.5; /* number (not a dimension) */
}<dimension> Browser support
Widely available
Since
2015 96% global usage
This feature is well established and works across many devices and browser versions. It has been available across browsers since 2015.
1+
1+
1+
12+
Your first month is free
Managed WordPress hosting for faster sites.
Learn more