custom-highlight-painting-003.html

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This WPT test may be referenced by the following Test IDs:
- /css/css-highlight-api/painting/custom-highlight-painting-003.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<meta charset="UTF-8">

<title>CSS Highlight API Test: </title>

<link rel="help" href="https://drafts.csswg.org/css-highlight-api-1/">

<link rel="match" href="custom-highlight-painting-003-ref.html">

<meta name="assert" value="Intersections of overlapping ranges contained in the same Highlight are painted only once">

<style>

  ::highlight(sample) { background-color: rgba(0, 0, 255, 0.3); }

</style>

<body>Lorem Ipsum.

<script>

  let textNode = document.body.firstChild;

  let r1 = new Range();

  r1.setStart(textNode, 1);

  r1.setEnd(textNode, 5);

  let r2 = new Range();

  r2.setStart(textNode, 3);

  r2.setEnd(textNode, 7);

  CSS.highlights.set("sample", new Highlight(r1, r2));

</script>