-
Notifications
You must be signed in to change notification settings - Fork 3.3k
/
Copy pathflexbox-basic-canvas-vert-001.xhtml
103 lines (90 loc) · 3.38 KB
/
flexbox-basic-canvas-vert-001.xhtml
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
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
<?xml version="1.0" encoding="UTF-8"?>
<!--
Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/
-->
<!--
This test checks that canvas elements behave correctly as flex items.
-->
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>CSS Test: Testing flexbox layout algorithm property on canvas flex items in a vertical flex container</title>
<link rel="author" title="Daniel Holbert" href="mailto:[email protected]"/>
<link rel="help" href="http://www.w3.org/TR/css-flexbox-1/#layout-algorithm"/>
<link rel="match" href="flexbox-basic-canvas-vert-001-ref.xhtml"/>
<style>
div.flexbox {
height: 200px;
background: lightgreen;
display: flex;
justify-content: space-between;
flex-direction: column;
float: left;
margin-right: 10px;
font: 8px monospace;
}
canvas {
width: 20px;
height: 10px;
min-height: 0;
border: 1px dotted green;
}
</style>
</head>
<body>
<!-- A) One flex item -->
<div class="flexbox">
<canvas/>
</div>
<!-- B) Text and a canvas (ensure they aren't merged into one flex item) -->
<div class="flexbox">
a b <canvas/>
</div>
<!-- C) Two canvas elements, getting stretched by different ratios, from 0.
Space-to-be-distributed = 200px - borders = 200 - (1 + 1) - (1 + 1)
= 196px
1st element gets 5/9 of space: 5/9 * 196px = 108.8px
1st element gets 4/9 of space: 4/9 * 196px = 87.1px
-->
<div class="flexbox">
<canvas style="flex: 5"/>
<canvas style="flex: 4"/>
</div>
<!-- D) Two canvas elements, getting stretched by different ratios, from
different flex bases.
Space-to-be-distributed = 200px - (33 + 1 + 1) - (13 + 1 + 1) = 150px
1st element gets 2/5 of space: 33px + 2/5 * 150px = 93px
1st element gets 3/5 of space: 13px + 3/5 * 150px = 103px
-->
<div class="flexbox">
<canvas style="height: 33px; flex: 2 auto"/>
<canvas style="height: 13px; flex: 3 auto"/>
</div>
<!-- E) Two flex items, getting shrunk by different amounts.
Space-to-be-distributed = 200px - (150 + 1 + 1) - (100 + 1 + 1) = -54px
First element scaled flex ratio = 4 * 150 = 600
Second element scaled flex ratio = 3 * 100 = 300
* So, total flexibility is 600 + 300 = 900
1st element gets 600/900 of space: 150 + 600/900 * -54 = 114px
2nd element gets 300/900 of space: 100 + 300/900 * -54 = 82px
-->
<div class="flexbox">
<canvas style="height: 150px; flex: 1 4 auto"/>
<canvas style="height: 100px; flex: 1 3 auto"/>
</div>
<!-- F) Making sure we don't grow past max-height -->
<!-- Same as (D), except we've added a max-height on the second element.
-->
<div class="flexbox">
<canvas style="height: 33px; flex: 2 auto"/>
<canvas style="height: 13px; max-height: 90px; flex: 3 auto"/>
</div>
<!-- G) Making sure we grow at least as large as min-height -->
<!-- Same as (C), except we've added a min-height on the second element.
-->
<div class="flexbox">
<canvas style="height: 33px; flex: 2 auto"/>
<canvas style="height: 13px; min-height: 150px; flex: 3 auto"/>
</div>
</body>
</html>