summaryrefslogtreecommitdiffstats
path: root/testing/web-platform/tests/css/CSS2/positioning/absolute-non-replaced-height-005.xht
blob: 3aa09b85924769cc45647952b49646fce28b9061 (plain)
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
61
62
63
64
65
66
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <title>CSS Test: Absolutely positioned, non-replaced elements, 'margin-bottom' set to 'auto'</title>
        <link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
        <link rel="reviewer" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" /> <!-- 2012-08-31 -->
        <link rel="help" href="http://www.w3.org/TR/CSS21/visudet.html#abs-non-replaced-height" />
		<link rel="match" href="absolute-non-replaced-height-003-ref.xht" />

        <meta name="assert" content="When 'top', 'bottom' and 'height' are all are not 'auto', 'margin-top' is not 'auto' and 'margin-bottom' is 'auto'. Then 'margin-bottom' becomes the remainder of the height of the containing box." />
        <style type="text/css">
            #div1
            {
                border: solid black;
                height: 3in;
                position: relative;
                width: 3in;
            }
            div div
            {
                background: blue;
                bottom: 0.5in;
                height: 1in;
                margin-bottom: auto;
                margin-top: 0.5in;
                position: absolute;
                top: 0.5in;
                width: 100%;
            }

		/*

		0.5in : top
	+
		0.5in : margin-top
	+
		0 : border-top-width
	+
		0 : padding-top
	+
		1in: height
	+
		0 : padding-bottom
	+
		0 : border-bottom-width
	+
		auto (solve) : margin-bottom
	+
		0.5in : bottom
	=============
		3.0in : height of containing block

	So, margin-bottom must use 0.5in so that the equation gets balanced.

		*/


        </style>
    </head>
    <body>
        <p>Test passes if a blue rectangle is <strong>vertically centered</strong> in an hollow black square.</p>
        <div id="div1">
            <div></div>
        </div>
    </body>
</html>