File: cross-fade-target-alpha.html

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<!DOCTYPE html>
<html>
  <head>
    <title>cross-fade() with less than 100% total percentage gets faded correctly</title>
    <link rel="author" title="Steinar H. Gunderson" href="mailto:sesse@chromium.org">
    <link rel="help" href="https://drafts.csswg.org/css-images-4/#cross-fade-function">
    <link rel="match" href="cross-fade-target-alpha-ref.html">
    <!-- Implementations compositing in 8-bit may get fairly strong accuracy issues here,
         so the fuzz needs to be set pretty liberally. -->
    <meta name="fuzzy" content="0-8;0-300000">
    <style>
      .outer {
        display:block;
        width: 500px;
        height: 500px;
        padding: 50px;
        background: linear-gradient(90deg, red, green);
      }
      .inner {
        display: block;
        width: 100%;
        height: 100%;
        color: white;
        /* NOTE: The same gradient several times, so that we can easily simulate this using opacity. */
        background: cross-fade(
          10% linear-gradient(#e66465, #9198e5),
          10% linear-gradient(#e66465, #9198e5),
          10% linear-gradient(#e66465, #9198e5),
          10% linear-gradient(#e66465, #9198e5),
          10% linear-gradient(#e66465, #9198e5),
          10% linear-gradient(#e66465, #9198e5)
        );
      }
    </style>
  </head>
  <p>The inner gradient should be (in total) 60% covering over the outer.</p>
  <div class="outer">
    <div class="inner">
    </div>
  </div>
</html>