background-attachment

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since March 2022.

Resumen

La propiedad CSS background-attachment determina si la posición de la imagen de fondo será fija dentro de la pantalla o se desplazará con su bloque contenedor.

Sintaxis

background-attachment: scroll | fixed | inherit

Valores

scroll

Si scroll es especificado, la imagen de fondo se moverá dentro de la pantalla junto al bloque que la contiene.

fixed

Si fixed es especificado, la imagen de fondo estará fija en la pantalla y no se moverá con el bloque contenedor.

Ejemplos

Ejemplo simple

CSS

css
p {
  background-image: url("starsolid.gif");
  background-attachment: fixed;
}

HTML

html
<p>
  There were doors all round the hall, but they were all locked; and when Alice
  had been all the way down one side and up the other, trying every door, she
  walked sadly down the middle, wondering how she was ever to get out again.
</p>

Resultado

Soporta múltiples imagenes de fondo

Esta propiedad soporta multiples imágenes de fondo. Puedes especificar un <attachment> diferente por cada imagen de fondo, separado por comas. Cada imagen es asociada con el correspondiente valor de <attachment>, especificado desde el primero hasta el último.

CSS

css
p {
  background-image: url("starsolid.gif"), url("startransparent.gif");
  background-attachment: fixed, scroll;
  background-repeat: no-repeat, repeat-y;
}

HTML

html
<p>
  There were doors all round the hall, but they were all locked; and when Alice
  had been all the way down one side and up the other, trying every door, she
  walked sadly down the middle, wondering how she was ever to get out again.
  Suddenly she came upon a little three-legged table, all made of solid glass;
  there was nothing on it except a tiny golden key, and Alice's first thought
  was that it might belong to one of the doors of the hall; but, alas! either
  the locks were too large, or the key was too small, but at any rate it would
  not open any of them. However, on the second time round, she came upon a low
  curtain she had not noticed before, and behind it was a little door about
  fifteen inches high: she tried the little golden key in the lock, and to her
  great delight it fitted!
</p>

Resultado

Especificaciones

Specification
CSS Backgrounds and Borders Module Level 3
# the-background-attachment

Compatibilidad con navegadores

BCD tables only load in the browser

Ver también

background, background-attachment, background-color, background-image, background-position, background-repeat