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<!DOCTYPE html>
<html class="reftest-wait" style="overflow-x:hidden;">
<title>fixed position, z-index, and mix-blend-mode</title>
<link rel="help" href="https://www.w3.org/TR/CSS2/visuren.html#fixed-positioning">
<link rel="help" href="https://www.w3.org/TR/CSS2/visuren.html#propdef-z-index">
<link rel="help" href="https://www.w3.org/TR/compositing-1/#mix-blend-mode">
<meta name="assert" content="Tests fixed, z-index, and mix-blend-mode.
Passes if there is a green box when the page is scrolled to the bottom.">
<link rel="author" href="mailto:masonf@chromium.org">
<link rel="match" href="fixed-z-index-blend-ref.html">
<div class="blend"></div>
<div class="background"></div>
<div class="text">
<div style="width: 100px; height:4000px;"></div>
<div style="background: green; width: 100px; height:100px;"></div>
</div>
<style>
.blend {
display: block;
position: fixed;
z-index: 2;
top: 0;
left: 0;
bottom: 0;
right: 0;
mix-blend-mode: overlay;
}
.background {
pointer-events: none;
position: fixed;
z-index: 1;
top: 0;
left: 0;
bottom: 0;
right: 0;
opacity: 1;
}
.text {
position: relative;
z-index: 3;
overflow: hidden;
width: 100vw;
min-height: 100vh;
font-size: 50px;
line-height: 2;
}
</style>
<script src="/common/reftest-wait.js"></script>
<script>
requestAnimationFrame(()=>{
requestAnimationFrame(()=>{
window.scrollBy(0, 3000);
takeScreenshot();
});
});
</script>
</html>
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