css/css-images/gradient/gradient-none-interpolation.html

<!DOCTYPE html>
<html>
 <head>
  <title>Gradient interpolation</title>
  <link rel="author" title="Aaron Krajeski" href="mailto:aaronhk@chromium.org">
  <link rel="help" href="https://www.w3.org/TR/css-color-4/#interpolation">
  <meta name="assert" content="Channel values of 'none' should not affect the gradient.">
  <link rel="match" href="gradient-none-interpolation-ref.html">
  <style>
    div {
      height: 100px;
    }
    #red {
      background: linear-gradient(to right in srgb, color(srgb 0 0 0), color(srgb none 0.5 0.5), color(srgb 1 1 1));
    }
    #green {
      background: linear-gradient(to right in srgb, color(srgb 0 0 0), color(srgb 0.5 none 0.5), color(srgb 1 1 1));
    }
    #blue {
      background: linear-gradient(to right in srgb, color(srgb 0 0 0), color(srgb 0.5 0.5 none), color(srgb 1 1 1));
    }
    #redAndGreen {
      background: linear-gradient(to right in srgb, color(srgb 0 none 0), color(srgb 0.5 0.5 none), color(srgb 1 1 1));
    }
    #multiple {
      background: linear-gradient(to right in srgb, color(srgb 0 0 0), color(srgb 0.25 0.25 none),
        color(srgb 0.5 0.5 none), color(srgb 0.75 0.75 none), color(srgb 1 1 1));
    }
    #noneOnLeft {
      background: linear-gradient(to right in srgb, color(srgb none 0 0), color(srgb none 0.25 0.25),
        color(srgb 0.5 0.5 0.5), color(srgb 0.75 0.75 0.75), color(srgb 1 1 1));
    }
    #noneOnRight {
      background: linear-gradient(to right in srgb, color(srgb 0 0 0), color(srgb 0.25 0.25 0.25),
        color(srgb 0.5 0.5 0.5), color(srgb 0.75 0.75 none), color(srgb 1 1 none));
    }
    #allNone {
      background: linear-gradient(to right in srgb, color(srgb none 0 0), color(srgb none 1 1));
    }
 </style>
 </head>
 <body>
  <div id="red"></div>
  <div id="green"></div>
  <div id="blue"></div>
  <div id="redAndGreen"></div>
  <div id="multiple"></div>
  <div id="noneOnLeft"></div>
  <div id="noneOnRight"></div>
  <div id="allNone"></div>
 </body>
</html>