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css type

`<length-percentage>` CSS type

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The <length-percentage> CSS data type represents a value that can be either a length or a percentage.

Syntax

Refer to the documentation for length and percentage for details of the individual syntaxes allowed by this type.

Formal syntax

Examples

length-percentage examples

This example demonstrates several properties that use <length-percentage> values.

HTML

<p>You can use percentages and lengths in so many places.</p>

CSS

p {
  /* length-percentage examples */
  width: 75%;
  height: 200px;
  margin: 3rem;
  padding: 1%;
  border-radius: 10px 10%;
  font-size: 250%;
  line-height: 1.5em;

  /* length examples */
  text-shadow: 1px 1px 1px red;
  border: 5px solid red;
  letter-spacing: 3px;

  /* percentage example */
  text-size-adjust: 20%;
}

Result

Interactive exampleOpen the canonical MDN source to run this embedded demo.

Use in calc()

Where a <length-percentage> is specified as an allowable type, this means that the percentage resolves to a length and therefore can be used in a calc() expression. Therefore, all of the following values are acceptable for width:

width: 200px;
width: 20%;
width: calc(100% - 200px);

Specifications

SpecificationsStandards references are available on the canonical MDN page.

Browser compatibility

Browser compatibilityCompatibility data is available on the canonical MDN page.

See also