Web/CSS/minmax()

The minmax() CSS function defines a size range greater than or equal to min and less than or equal to max. It is used with CSS Grids.

Syntax

/* <inflexible-breadth>, <track-breadth> values */
minmax(200px, 1fr)
minmax(400px, 50%)
minmax(30%, 300px)
minmax(100px, max-content)
minmax(min-content, 400px)
minmax(max-content, auto)
minmax(auto, 300px)
minmax(min-content, auto)

/* <fixed-breadth>, <track-breadth> values */
minmax(200px, 1fr)
minmax(30%, 300px)
minmax(400px, 50%)
minmax(50%, min-content)
minmax(300px, max-content)
minmax(200px, auto)

/* <inflexible-breadth>, <fixed-breadth> values */
minmax(400px, 50%)
minmax(30%, 300px)
minmax(min-content, 200px)
minmax(max-content, 200px)
minmax(auto, 300px)

A function taking two parameters, min and max.

Each parameter can be a <length>, a <percentage>, a <flex> value, or one of the keyword values max-content, min-content, or auto.

If max < min, then max is ignored and minmax(min,max) is treated as min. As a maximum, a <flex> value sets the flex factor of a grid track; it is invalid as a minimum.

Values

<length>: A non-negative length.
<percentage>: A non-negative percentage relative to the inline size of the grid container in column grid tracks, and the block size of the grid container in row grid tracks. If the size of the grid container depends on the size of its tracks, then the <percentage> must be treated as auto. The user agent may adjust the intrinsic size contributions of the track to the size of the grid container and increase the final size of the track by the minimum amount that would result in honoring the percentage.
<flex>: A non-negative dimension with the unit fr specifying the track’s flex factor. Each <flex>-sized track takes a share of the remaining space in proportion to its flex factor.
max-content: Represents the largest max-content contribution of the grid items occupying the grid track.
min-content: Represents the largest min-content contribution of the grid items occupying the grid track.
auto: As a maximum, identical to max-content. As a minimum it represents the largest minimum size (as specified by min-width/min-height) of the grid items occupying the grid track.

Formal syntax

minmax( [ <length> | <percentage> | min-content | max-content | auto ] , [ <length> | <percentage> | <flex> | min-content | max-content | auto ] )

CSS properties

minmax() function can be used within:

Examples

CSS

#container {
  display: grid;
  grid-template-columns: minmax(min-content, 300px) minmax(200px, 1fr) 150px;
  grid-gap: 5px;
  box-sizing: border-box;
  height: 200px;
  width: 100%;
  background-color: #8cffa0;
  padding: 10px;
}

#container > div {
  background-color: #8ca0ff;
  padding: 5px;
}

HTML

<div id="container">
  <div>
    Item as wide as the content, but at most 300 pixels.
  </div>
  <div>
    Item with flexible width but a minimum of 200 pixels.
  </div>
  <div>
    Inflexible item of 150 pixels width.
  </div>
</div>

Result

Specifications

Specification	Status	Comment
CSS Grid LayoutThe definition of 'minmax()' in that specification.	Candidate Recommendation	Initial definition

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`minmax()`	Chrome Full support 57 Full support 57 Full support 29 Disabled' Disabled' From version 29: this feature is behind the `Enable experimental Web Platform features` preference. To change preferences in Chrome, visit chrome://flags.	Edge Full support 16	Firefox Full support 52 Full support 52 No support 40 — 59 Disabled' Disabled' From version 40 until version 59 (exclusive): this feature is behind the `layout.css.grid.enabled` preference (needs to be set to `true`). To change preferences in Firefox, visit about:config.	IE No support No	Opera Full support 44 Full support 44 Full support 28 Disabled' Disabled' From version 28: this feature is behind the `Enable experimental Web Platform features` preference.	Safari Full support 10.1	WebView Android Full support 57	Chrome Android Full support 57 Full support 57 Full support 29 Disabled' Disabled' From version 29: this feature is behind the `Enable experimental Web Platform features` preference. To change preferences in Chrome, visit chrome://flags.	Firefox Android Full support 52 Full support 52 No support 40 — 59 Disabled' Disabled' From version 40 until version 59 (exclusive): this feature is behind the `layout.css.grid.enabled` preference (needs to be set to `true`). To change preferences in Firefox, visit about:config.	Opera Android Full support 43 Full support 43 Full support 28 Disabled' Disabled' From version 28: this feature is behind the `Enable experimental Web Platform features` preference.	Safari iOS Full support 10.3	Samsung Internet Android Full support 6.0

Legend

Full support: Full support
No support: No support
User must explicitly enable this feature.': User must explicitly enable this feature.