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
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
<!DOCTYPE html>
<html class="reftest-wait">
<meta charset="utf-8">
<title>CSS2 Line height test: baseline position, normal sizing vs explicit sizing</title>
<link rel="author" title="Florian Rivoal" href="https://florian.rivoal.net">
<link rel="help" href="https://drafts.csswg.org/css2/visudet.html#line-height">
<link rel="match" href="reference/line-height-202-ref.html">
<meta name="flags" content="">
<meta name="assert" content="The position of the baseline in an inline-level box whose line-height is normal
and the position of the baseline in an inline-level box whose line-height is set to a non normal value resulting in the same height
are the same,
assuming only the first available font is used.">
<style>
@font-face {
font-family: 'high';
font-style: normal;
font-weight: 400;
src: url(/fonts/Revalia.woff) format('woff');
}
div {
position: absolute;
font-size: 100px;
width: 2em; /* plenty of room for the (invisible) text */
text-align: right;
color: transparent;
}
span { /* visible thing aligned to the baseline, and small enough to not influence its position */
display: inline-block;
width: 20px;
height: 20px;
}
/* white #lh-auto is on top of red #lh-manual,
and as their baselines should line up
#lh-manual should be fully covered,
and no red should be visible */
#lh-manual { font-family: high; }
#lh-manual span { background: red; }
#lh-auto { font-family: high; line-height: normal; }
#lh-auto span { background: white; }
</style>
<body onload="measure()">
<p>Test passes if there is <strong>no red</strong> below.
<div id=lh-manual>a<span></span></div>
<div id=lh-auto>a<span></span></div>
<script>
function measure() { /* let layout complete first, so that we can measure things */
var lha = document.getElementById("lh-auto");
var lhm = document.getElementById("lh-manual")
var h = window.getComputedStyle(lha).height; /*getting the used-value of line-height by proxy */
lhm.style.lineHeight = h;
document.documentElement.className = "";
}
</script>
|
