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
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
|
<!DOCTYPE html>
<!--
Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/
-->
<html>
<head>
<title>
CSS Test: Testing that explicit "flex-basis: content" is treated as
"max-content" when calculating flex base size
</title>
<meta charset="utf-8">
<link rel="author" title="Daniel Holbert" href="mailto:dholbert@mozilla.com">
<link rel="help" href="https://www.w3.org/TR/css-flexbox-1/#flex-base-size">
<link rel="match" href="flexbox-flex-basis-content-003-ref.html">
<style>
.container {
display: flex;
/* flex container has an extremely-constrained width (and items will
overflow horizontally). This is intentional, as part of stress-testing
item sizing. */
width: 1px;
}
.item {
/* We give all flex items "flex-basis: content".
We also give them zero flex-grow, flex-shrink, and min-main-size, so
that the flex base size entirely determines the flex item's size. */
flex: 0 0 content;
min-width: 0;
border: 2px solid teal;
}
ib {
display: inline-block;
background: blue;
border: 1px solid gray;
width: 15px;
height: 10px;
}
float {
float: left;
background: fuchsia;
border: 1px solid gray;
width: 15px;
height: 10px;
}
canvas {
background: brown;
border: 1px solid gray;
}
.innerFlex {
display: flex;
}
innerItem {
background: salmon;
border: 1px solid gray;
height: 10px;
width: 15px;
flex: none;
}
</style>
</head>
<body>
<!-- The idea of this test is to be sure the UA is using the "max-content" size
(and not e.g. the "fit-content size") when resolving the flex base size
inside each flex container. To differentiate between max-content and
other intrinsic size possibilities (min-content/fit-content), we:
- use flex items with a large difference between its min-content size &
its max-content size (e.g. wrappable content).
- use a very small container (to compress the size, if the UA incorrectly
allows the size to be influenced by the container size).
-->
<!-- Flex item has several inline-blocks
(no spaces, to avoid any text-layout dependency): -->
<div class="container">
<div class="item"><ib></ib><ib></ib><ib></ib></div>
</div>
<!-- Flex item has several floats: -->
<div class="container">
<div class="item">
<float></float>
<float></float>
<float></float>
</div>
</div>
<!-- Flex item has several inline replaced elements:
(no spaces, to avoid any text-layout dependency): -->
<div class="container">
<div class="item">
<canvas width="15" height="10"></canvas
><canvas width="15" height="10"></canvas
><canvas width="15" height="10"></canvas>
</div>
</div>
<!-- Flex item *is* a replaced element: -->
<div class="container">
<canvas class="item" width="25" height="10"></canvas>
</div>
<!-- Flex item is itself a flex container: -->
<div class="container">
<div class="item innerFlex">
<innerItem></innerItem>
<innerItem></innerItem>
<innerItem></innerItem>
</div>
</div>
<!-- Flex item is itself a multi-line flex container: -->
<div class="container">
<div class="item innerFlex" style="flex-wrap: wrap">
<innerItem></innerItem>
<innerItem></innerItem>
<innerItem></innerItem>
</div>
</div>
</body>
</html>
|
