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Test Info:

<!DOCTYPE html>
<html lang="en" class="reftest-wait">
<meta charset="utf-8" />
<title>CSS Pseudo-Elements Test: Dynamic change ::target-text background color</title>
<link rel="author" title="Manuel Rego Casasnovas" href="mailto:rego@igalia.com">
<meta name="assert" content="This test checks that it's possible to modify dinamically the background color of a targeted text through ::target-text pseudo-element.">
<link rel="match" href="target-text-dynamic-001-ref.html">
<script src="/common/reftest-wait.js"></script>
<style>
span::target-text {
background-color: cyan;
}
span {
background-color: cyan;
}
</style>
<p>The test passes if the following word has a magenta background.</p>
<div><span>Example</span></div>
<script>
location.href = "#:~:text=Example";
requestAnimationFrame(() => requestAnimationFrame(() => {
document.styleSheets[0].cssRules[0].style.backgroundColor = "magenta";
takeScreenshot();
}));
</script>
</html>