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@viewport.height

The height CSS descriptor is a shorthand descriptor for setting both min-height and max-height of the viewport. by providing one viewport length value will set both, the minimum height and the maximum height, to the value provided.

If two viewport values are provided, the first value will set the minimum height and the second value will set the maximum height.

Related at-rule @viewport
Initial value as each of the properties of the shorthand:
Percentages as each of the properties of the shorthand:
  • min-height: 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.
  • max-height: 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.
Media as each of the properties of the shorthand:
Computed value as each of the properties of the shorthand:
  • min-height: the percentage as specified or the absolute length
  • max-height: the percentage as specified or the absolute length or none
Canonical order order of appearance in the formal grammar of the values

Syntax

/* One value */
height: auto;
height: 320px;
height: 15em;

/* Two values */
height: 320px 200px;

Values

auto
The used value is calculated from the other CSS descriptors' values.
<length>
A non-negative absolute or relative length.
<percentage>
A percentage value relative to the width or height of the initial viewport at zoom factor 1.0, for horizontal and vertical lengths respectively. Must be non-negative.

Formal syntax

<viewport-length>{1,2}

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

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

Example

@viewport {
  height: 500px;
}

Specifications

Specification Status Comment
CSS Device Adaptation
The definition of '"height" descriptor' in that specification.
Working Draft Initial definition

Browser compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
Basic support 29 ? No 10
Prefixed
10
Prefixed
Prefixed Requires the vendor prefix: -ms-
16
16
11.1 — 15
No
Mobile
Android webview Chrome for Android Edge Mobile Firefox for Android Opera for Android iOS Safari Samsung Internet
Basic support 4.4 29 ? No 16
16
11.1 — 14
No Yes

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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/CSS/@viewport/height