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 enero de 2020.
* 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
margin-block-start: 20px; writing-mode: horizontal-tb;
margin-block-start: 20px; writing-mode: vertical-rl;
margin-block-start: 20%; writing-mode: horizontal-tb;
margin-block-start: auto; writing-mode: vertical-lr;
<section id="default-example"> <div id="container"> <div class="row">One</div> <div class="row transition-all" id="example-element">Two</div> <div class="row">Three</div> </div> </section>
#container { width: 300px; height: 200px; display: flex; align-content: flex-start; flex-direction: column; justify-content: flex-start; } .row { height: 33.33%; display: inline-block; border: solid #ce7777 10px; background-color: #2b3a55; color: #ffffff; flex-shrink: 0; } #example-element { border: solid 10px #ffbf00; background-color: #2b3a55; }
Sintaxis
/* <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 inicial | 0 |
---|---|
Applies to | same as margin |
Heredable | no |
Percentages | depends on layout model |
Valor calculado | if specified as a length, the corresponding absolute length; if specified as a percentage, the specified value; otherwise, auto |
Animation type | a 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
<div> <p class="exampleText">Example text</p> </div>
Contenido 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
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Mira también
- Las propiedades físicas mapeadas:
margin-top
,margin-right
,margin-bottom
, ymargin-left
writing-mode
,direction
,text-orientation