/
highlight-painting-order.html
37 lines (36 loc) · 1.37 KB
/
highlight-painting-order.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
<!doctype html>
<meta charset="utf-8">
<title>CSS Pseudo-Elements Test: highlight painting order</title>
<link rel="help" href="https://drafts.csswg.org/css-pseudo-4/#highlight-painting">
<link rel="help" href="https://drafts.csswg.org/css-text-decor-4/#painting">
<link rel="help" href="https://www.w3.org/TR/CSS22/zindex.html#painting-order">
<link rel="match" href="highlight-painting-order-ref.html">
<meta name="assert" value="highlight overlays are painted in the correct order, including both the element’s shadows and the highlight’s shadows">
<style>
p {
font-size: 7em;
text-shadow: 0.2500em 0.2500em #C0C000;
/*
https://drafts.csswg.org/css-pseudo-4/#highlight-bounds
For text, the corresponding overlay must cover at least
the entire em box and may extend further above/below the
em box to the line box edges.
*/
line-height: 1;
}
p::selection {
background: #C0C0C0;
text-shadow: 0.5000em 0.5000em #3838E0;
}
</style>
<p>quick
<script>
const target = document.querySelector("p");
const range = document.createRange();
range.selectNodeContents(target);
range.setStart(target.childNodes[0], 1);
range.setEnd(target.childNodes[0], 4);
const selection = getSelection();
selection.removeAllRanges();
selection.addRange(range);
</script>