<length-percentage>
A CSS data type that accepts either a length (like 20px) or a percentage (like 50%). It's used in properties like 'width', 'margin', and 'padding'.
Syntax
/* Usage Example */
.box {
/* Uses a length-percentage for width */
width: calc(100% - 40px);
padding: 5%;
}<length-percentage> 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.
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