margin-block-start

Baseline Widely available *

This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2021.

* Some parts of this feature may have varying levels of support.

Experimental: Esta es una tecnología experimental
Comprueba la Tabla de compabilidad de navegadores cuidadosamente antes de usarla en producción.

La propiedad de CSS margin-block-start CSS property defines the logical block start margin of an element, which maps to a physical margin depending on the element's writing mode, directionality, and text orientation.

Pruébalo

Sintaxis

css
/* <length> values */
margin-block-start: 10px; /* An absolute length */
margin-block-start: 1em; /* relative to the text size */
margin-block-start: 5%; /* relative to the nearest block container's width */

/* Keyword values */
margin-block-start: auto;

/* Global values */
margin-block-start: inherit;
margin-block-start: initial;
margin-block-start: unset;

Esto corresponde a las propiedades margin-top, margin-right, margin-bottom, o margin-left dependiendo de los valores definidos por writing-mode, direction, y text-orientation.

Se relaciona con margin-block-end, margin-inline-start, and margin-inline-end, que define las otras márgenes del elemento.

Valor inicial0
Applies tosame as margin
Heredableno
Percentagesdepends on layout model
Valor calculadoif specified as a length, the corresponding absolute length; if specified as a percentage, the specified value; otherwise, auto
Animation typea length

Valores

La propiedad margin-block-start toma los mismos valores de la propiedad margin-left.

Sintaxis formal

margin-block-start = 
<'margin-top'>

<margin-top> =
<length-percentage> |
auto |
<anchor-size()>

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

<anchor-size()> =
anchor-size( [ <anchor-name> || <anchor-size> ]? , <length-percentage>? )

<anchor-name> =
<dashed-ident>

<anchor-size> =
width |
height |
block |
inline |
self-block |
self-inline

Ejemplo

Contenido HTML

html
<div>
  <p class="exampleText">Example text</p>
</div>

Contenido CSS

css
div {
  background-color: yellow;
  width: 120px;
  height: 120px;
}

.exampleText {
  writing-mode: vertical-lr;
  margin-block-start: 20px;
  background-color: #c8c800;
}

Especificaciones

Specification
CSS Logical Properties and Values Level 1
# margin-properties

Compatibilidad con navegadores

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
margin-block-start
anchor-size()
Experimental

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
In development. Supported in a pre-release version.
In development. Supported in a pre-release version.
No support
No support
Experimental. Expect behavior to change in the future.

Mira también