Definition and Usage
The height CSS property specifies the height of the content area of an element. The content area is inside the padding, border, and margin of the element.
The min-height and max-height properties override height.
- Initialauto
- Applies toall elements but non-replaced inline elements, table columns, and column groups
- Inheritedno
- PercentagesThe 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 value computes to auto. A percentage height on the root element is relative to the initial containing block.
- Mediavisual
- Computed Valuea percentage or auto or the absolute length
- Animatableyes, 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 orderthe unique non-ambiguous order defined by the formal grammar
Syntax
Formal syntax: auto | <length> | <percentage>
height: auto /* auto keyword */
height: 120px /* <length> values */
height: 10em
height: 75% /* <percentage> values */
height: inherit
Values
- <length>
- See <length> for possible units.
- <percentage>
- The <percentage> is calculated with respect to the height of the containing block. If the height of the containing block is not specified explicitly, the value computes to auto. A percentage height on the root element (e.g. <html>) is relative to the initial containing block (whose dimensions are equal to the dimensions of the viewport).
- auto
- The browser will calculate and select a height for the specified element.
Examples
1 |
table { height : 100% ; } |
5 |
html, body { margin : 0 ; height : 100% ; } |
Compatibility
Desktop browsers
Feature |
Chrome |
Firefox (Gecko) |
Internet Explorer |
Opera |
Safari |
Basic support |
1.0 |
1.0 (1.7 or earlier) |
4.0 |
7.0 |
1.0 |
Mobile browsers
Feature |
Android |
Firefox Mobile (Gecko) |
IE Phone |
Opera Mobile |
Safari Mobile |
Basic support |
1.0 |
1.0 (1) |
6.0 |
6.0 |
1.0 |