height

Sumário

A propriedade height do CSS determina a altura da área do conteúdo de um elemento. A área de conteúdo consiste no padding, margin e border do elemento.

As propriedades min-height e max-height properties sobrepõe o height.

Initial value	`auto`
Aplica-se a	all elements but non-replaced inline elements, table columns, and column groups
Inherited	não
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 value computes to `auto`. A percentage height on the root element is relative to the initial containing block.
Midia	visual
Computed value	a percentage or `auto` 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

Sintaxe

Sintaxe formal: [<length> | <percentage>] && [border-box | content-box]? | available | min-content | max-content | fit-content | complex | auto

height: auto     /* auto keyword */

height: 120px    /* <length> values */
height: 10em

height: 75%      /* <percentage> values */

height: inherit

Valores

<length>

Veja <length> para unidades disponíveis.

<percentage>

Especifique a <percentage> da altura do conteúdo do bloco.

border-box

If present, the preceding <length> or <percentage> is applied to the element's border box.

content-box

If present, the preceding <length> or <percentage> is applied to the element's content box.

auto

O navegador calculará a altura do conteúdo especificado.

max-content

The intrinsic preferred height.

min-content

The intrinsic minimum height.

available

The containing block height minus vertical margin, border and padding.

fit-content

The larger of:

the intrinsic minimum height
the smaller of the intrinsic preferred height and the available height

Exemplos

HTML

<div id="red">
  <span>I'm 50 pixels tall.</span>
</div>
<div id="green">
  <span>I'm 25 pixels tall.</span>
</div>
<div id="parent">
  <div id="child">
    <span>I'm half the height of my parent.</span>
  </div>
</div>

CSS

div {
  width: 250px;
  margin-bottom: 5px;
  border: 3px solid #999999;
}

#red {
  height: 50px;
}

#green {
  height: 25px;
}

#parent {
  height: 100px;
}

#child {
  height: 50%;
  width: 75%;
}

Especificações

Specification	Status	Comment
CSS Basic Box Model The definition of 'height' in that specification.	Working Draft	Added the `max-content`, `min-content`, `available`, `fit-content`, `border-box`, `content-box` keywords.
CSS Transitions The definition of 'height' in that specification.	Working Draft	Lists `height` as animatable.
CSS Level 2 (Revision 1) The definition of 'height' in that specification.	Recommendation	Adds support for the `<length>` values and precises on which element it applies to.
CSS Level 1 The definition of 'height' in that specification.	Recommendation	Initial specification.

Feature	Chrome	Firefox (Gecko)	Internet Explorer	Opera	Safari
Suporte básico	1.0	1.0 (1.7 or earlier)	4.0	7.0	1.0

Feature	Android	Firefox Mobile (Gecko)	IE Phone	Opera Mobile	Safari Mobile
Suporte básico	1.0	1.0 (1)	6.0	6.0	1.0

Veja também

box model, width, box-sizing, min-height, max-height