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max-height

The max-height CSS property sets the maximum height of an element. It prevents the used value of the height property from becoming larger than the value specified for max-height.

max-height overrides height, but min-height overrides max-height.

Syntax

/* <length> value */
max-height: 3.5em;

/* <percentage> value */
max-height: 75%;

/* Keyword values */
max-height: none;
max-height: max-content;
max-height: min-content;
max-height: fit-content(20em);

/* Global values */
max-height: inherit;
max-height: initial;
max-height: unset;

Values

<length>
Defines the max-height as an absolute value.
<percentage>
Defines the max-height as a percentage of the containing block's height.
none
No limit on the size of the box.
max-content
The intrinsic preferred max-height.
min-content
The intrinsic minimum max-height.
fit-content(<length-percentage>)
Uses the fit-content formula with the available space replaced by the specified argument, i.e. min(max-content, max(min-content, argument)).

Accessibility concerns

Ensure that elements set with a max-height are not truncated and/or do not obscure other content when the page is zoomed to increase text size.

Formal definition

Initial value none
Applies to all elements but non-replaced inline elements, table columns, and column groups
Inherited no
Percentages The percentage is calculated with respect to the height of the generated box's containing block. If the height of the containing block is not specified explicitly (i.e., it depends on content height), and this element is not absolutely positioned, the percentage value is treated as none.
Computed value the percentage as specified or the absolute length or none
Animation type a length, percentage or calc();

Formal syntax

auto | <length> | <percentage> | min-content | max-content | fit-content(<length-percentage>)

where
<length-percentage> = <length> | <percentage>

Examples

Setting max-height using percentage and keyword values

table { max-height: 75%; }

form { max-height: none; }

Specifications

Browser compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
max-height 18 12 1
1
CSS 2.1 leaves the behavior of max-height with table undefined. Firefox supports applying max-height to table elements.
7 7
7
CSS 2.1 leaves the behavior of max-height with table undefined. Opera supports applying max-height to table elements.
1.3
fit-content 46
46
25
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
79
79
79
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
3
Prefixed
3
Prefixed
Prefixed Implemented with the vendor prefix: -moz-
Firefox implements the definitions given in CSS3 Basic Box. This defines available and not fit-available. Also, the definition of fit-content is simpler than in CSS3 Sizing.
No 44 11
11
6.1
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
2
Uses the non-standard name: intrinsic
max-content 46 79 66
66
3
Prefixed
Prefixed Implemented with the vendor prefix: -moz-
No 44 11
11
9
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
min-content 46 79 66
66
3
Prefixed
Prefixed Implemented with the vendor prefix: -moz-
No 44 11
11
9
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
stretch 28
28
Uses the non-standard name: -webkit-fill-available
79
79
Uses the non-standard name: -webkit-fill-available
No No 15
15
Uses the non-standard name: -webkit-fill-available
No
Mobile
Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
max-height ≤37 18 4 14 1 1.0
fit-content 46
46
≤37
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
46
46
25
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
4
Prefixed
4
Prefixed
Prefixed Implemented with the vendor prefix: -moz-
Firefox implements the definitions given in CSS3 Basic Box. This defines available and not fit-available. Also, the definition of fit-content is simpler than in CSS3 Sizing.
43 11
11
7
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
1
Uses the non-standard name: intrinsic
5.0
5.0
1.5
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
max-content 46 46 66
66
4
Prefixed
Prefixed Implemented with the vendor prefix: -moz-
43 11
11
9
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
5.0
min-content 46 46 66
66
4
Prefixed
Prefixed Implemented with the vendor prefix: -moz-
43 11
11
9
Prefixed
Prefixed Implemented with the vendor prefix: -webkit-
5.0
stretch 4.4
4.4
Uses the non-standard name: -webkit-fill-available
28
28
Uses the non-standard name: -webkit-fill-available
No 15
15
Uses the non-standard name: -webkit-fill-available
No 1.5
1.5
Uses the non-standard name: -webkit-fill-available

See also

© 2005–2020 Mozilla and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/CSS/max-height