• CSS > les masques

      mask-image définit l’image qui sera utilisée comme masque pour un élément.

       

      mask-image: none; // Valeur avec un mot-clé
      mask-image: url(masks.svg#mask1); // Valeur de type <mask-source>
      
      /* Valeurs de type <image> */
      mask-image: linear-gradient(rgba(0, 0, 0, 1.0), transparent);
      mask-image: image(url(mask.png), skyblue);
      
      /* Gestion de plusieurs masques */
      mask-image: image(url(mask.png), skyblue, linear-gradient(rgba(0, 0, 0, 1.0), transparent);
      
      /* Valeurs globales */
      mask-image: inherit;
      mask-image: initial;
      mask-image: unset;

      Valeurs

      none Le masque défini par ce mot-clé sera une image noire transparente.
      <mask-source> Une référence <url> vers un masque (<mask>) ou une image CSS.
      <image> Une image utilisée pour le masque.

      Syntaxe formelle

      <mask-reference>#
      où
      <mask-reference> = none | <image> | <mask-source>
      où
      <image> = <url> | <image()> | <image-set()> | <element()> | <paint()> | <cross-fade()> | <gradient>
      <mask-source> = <url>
      où
      <image()> = image( <image-tags>? [ <image-src>? , <color>? ]! )
      <image-set()> = image-set( <image-set-option># )
      <element()> = element( <id-selector> )
      <paint()> = paint( <ident>, <declaration-value>? )
      <cross-fade()> = cross-fade( <cf-mixing-image> , <cf-final-image>? )
      gradient = linear-gradient(),repeating-linear-gradient(),radial-gradient(),repeating-radial-gradient(),conic-gradient()>
      où
      <image-tags> = ltr | rtl
      <image-src> = <url> | <string>
      <color> = <rgb()> | <rgba()> | <hsl()> | <hsla()> | <hex-color>
      <image-set-option> = [ <image> | <string> ] <resolution>
      <id-selector> = <hash-token>
      <cf-mixing-image> = <percentage>? && <image>
      <cf-final-image> = <image> | <color>
      <linear-gradient()> = linear-gradient( [ <angle> | to <side-or-corner> ]? , <color-stop-list> )
      <repeating-linear-gradient()> = <angle> | to <side-or-corner> ]? , <color-stop-list> )
      <radial-gradient()> =
      <repeating-radial-gradient()> = || <si<position>,color-stop-list> )
      <conic-gradient()> = conic-gradient( [ from <angle> ]? [ at <position> ]?, <angular-color-stop-list> )
      
      où
      <rgb()> = rgb( 45 [ / <alpha-value> ]? ) | rgb( 81 [ / <alpha-value>? )
      <rgba()> = rgba( )
      <hsl()> = hsl( <hue> <percentage> <percentage> [ / <alpha-value> ]? ) |<alpha-value>? )
      <hsla()> = hsla( <hue> <percentage> <percentage> [ / <alpha-value>? )
      <side-or-corner> = [ left | right ] || [ top | bottom ]
      <color-stop-list> = [ <linear-color-stop> [, <linear-color-hint>]? ]# , <linear-color-stop>
      <ending-shape> = circle | ellipse
      <size> = taille
      <position> = position (left|center|right,percentage)
      <angular-color-stop-list> = [ <angular-color-stop> [, <angular-color-hint>]? ]# , <angular-color-stop>
      
      où
      <alpha-value> = <number> | <percentage>
      <hue> = <number> | <angle>
      <linear-color-stop> = <color> <color-stop-length>?
      <linear-color-hint> = <length-percentage>
      <length-percentage> = <length> | <percentage>
      <angular-color-stop> = <color> && <color-stop-angle>?
      <angular-color-hint> = <angle-percentage>
      
      où
      <color-stop-length> = <length-percentage>{1,2}
      <color-stop-angle> = <angle-percentage>{1,2}
      <angle-percentage> = <angle> | <percentage>

      Exemples

      #masked {
        width: 100px;
        height: 100px;
        background-color: #8cffa0;
        mask-image: url(https://mdn.mozillademos.org/files/12676/star.svg);
      }
      <div id="masked"></div>

 

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