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This feature is well established and works across many devices and browser versions. Its been available across browsers since abril de 2021.
* Some parts of this feature may have varying levels of support.
Experimental: Esta es una tecnologa experimental
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La propiedad de CSS inset-inline-start define la insercin de inicio en lnea lgica de un elemento, que se asigna a un desplazamiento fsico en funcin del modo de escritura, la direccionalidad y la orientacin del texto del elemento. Corresponde a la propiedad top, right, bottom, o left dependiendo de la propiedad en los valores definidos para writing-mode, direction, y text-orientation.
/* <length> values */
inset-inline-start: 3px;
inset-inline-start: 2.4em;
/* <percentage>s of the width or height of the containing block */
inset-inline-start: 10%;
/* Keyword value */
inset-inline-start: auto;
/* Global values */
inset-inline-start: inherit;
inset-inline-start: initial;
inset-inline-start: unset;
| Valor inicial | auto |
|---|---|
| Applies to | positioned elements |
| Heredable | no |
| Percentages | logical-width of containing block |
| Valor calculado | same as box offsets: top, right, bottom, left properties except that directions are logical |
| Animation type | a length, percentage or calc(); |
La propiedad inset-inline-start toma los mismos valores de la propiedad left.
inset-inline-start =Esta sintaxis refleja el estndar ms reciente segn CSS Positioned Layout Module Level 3, CSS Values and Units Module Level 4. Es posible que no todos los navegadores hayan implementado todas las partes. Consulte Compatibilidad del navegador para obtener informacin de soporte.
auto |
<length-percentage>
<length-percentage> =
<length> |
<percentage>
<div>
<p class="exampleText">Example text</p>
</div>
div {
background-color: yellow;
width: 120px;
height: 120px;
}
.exampleText {
writing-mode: vertical-lr;
position: relative;
inset-inline-start: 20px;
background-color: #c8c800;
}
| Specification |
|---|
| CSS Logical Properties and Values Module Level 1 # propdef-inset-inline-start |
| CSS Positioned Layout Module Level 3 # propdef-inset-inline-start |
inset-block-start, inset-block-end, y inset-inline-endtop, right, bottom, y leftwriting-mode, direction, text-orientationThis page was last modified on 20 mar 2026 by MDN contributors.
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