min-height property CSS Reference

Definition and Usage

The min-height CSS property is used to set the minimum height of a given element. It prevents the used value of the height property from becoming smaller than the value specified for min-height.

The value of min-height overrides both max-height and height.

  • Initial 0
  • 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 0.
  • Media visual
  • Computed Value the percentage as specified or the absolute length
  • Animatable yes, as a length, percentage or calc(); when both values are lengths, they are interpolated as lengths; when both values are percentages, they are interpolated as percentages; otherwise, both values are converted into a calc() function that is the sum of a length and a percentage (each possibly zero), and these calc() functions have each half interpolated as real numbers.
  • Canonical order the unique non-ambiguous order defined by the formal grammar


Formal syntax: <length> | <percentage> | max-content | min-content | fit-content | fill-available
min-height: 3.5em
min-height: 10%
min-height: max-content
min-height: min-content
min-height: fit-content
min-height: fill-available
min-height: inherit


The fixed minimum height. See <length> for possible units. Negative values make the declaration invalid.
The fixed minimum height expressed as a <percentage> of containing block's height. Negative values make the declaration invalid.
The intrinsic preferred height.
The intrinsic minimum height.
The containing block height minus horizontal margin, border and padding. Some browsers implement an ancient name for this keyword, available.
According CSS3 Box, this is a synonym of min-content. CSS3 Sizing defines a more complex algorithm, but no browser implements it, even in an experimental way.


table { min-height: 75%; }
form { min-height: 0; }


Desktop browsers

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 1.0 3.0 (1.9) 7.0 4.0 1.0
2.0.2 (416) for positioned elements
applies to <table> Not supported (Yes) Not supported (Yes) Not supported
max-content, min-content, fit-content, and fill-available Not supported Not supported Not supported Not supported Not supported
auto Obsolete since Gecko 22 21.0 16.0 (16.0) Not supported 12.10 Not supported
auto as initial value Obsolete since Gecko 22 21.0 18.0 (18.0) Not supported 12.10 Not supported

Mobile browsers

Feature Android Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile
Basic support NA NA NA NA NA

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