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<!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="Color stops with missing components should split into two stops and take their neighboring values.">
<link rel="match" href="gradient-none-interpolation-ref.html">
<meta name="fuzzy" content="maxDifference=1; totalPixels=0-15000">
<style>
div {
height: 50px;
}
#basic {
/* "none" should split into two and take each neighboring value. */
background: linear-gradient(to right in srgb, color(srgb 0.5 0 0), color(srgb none 0.5 0.5), color(srgb 1 1 1));
}
#multipleNone {
/* "none" and "none" gives zero. */
background: linear-gradient(to right in srgb, color(srgb none 0 0), color(srgb none 0.5 0.5), color(srgb 1 1 1));
}
#allNone {
/* "none" and "none" gives zero. */
background: linear-gradient(to right in srgb, color(srgb none 0 0), color(srgb none 1 1));
}
#noneHue {
background: linear-gradient(to right in oklch, oklch(0.2 0.1 90), oklch(0.8 0.4 none), oklch(0.3 0.2 180));
}
#noneHueLonger {
background: linear-gradient(to right in oklch longer hue, oklch(0.2 0.1 90), oklch(0.5 0.3 none), oklch(0.8 0.4 180));
}
#transparentHueIsPowerless {
/* When "transparent" is converted to oklch, the hue of the resulting stop should act as if it were missing. */
background: linear-gradient(to right in oklch, red, transparent, blue);
}
#srgb-mixing-with-named-color {
background: linear-gradient(90deg in srgb, rgb(none 255 none), yellow);
}
</style>
</head>
<body>
<div id="basic"></div>
<div id="multipleNone"></div>
<div id="allNone"></div>
<div id="noneHue"></div>
<div id="noneHueLonger"></div>
<div id="transparentHueIsPowerless"></div>
<div id="srgb-mixing-with-named-color"></div>
</body>
</html>
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