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7e0081585f
--HG-- rename : layout/reftests/bugs/solidblue.png => layout/reftests/flexbox/solidblue.png
103 lines
3.6 KiB
HTML
103 lines
3.6 KiB
HTML
<?xml version="1.0" encoding="UTF-8"?>
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<!--
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Any copyright is dedicated to the Public Domain.
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http://creativecommons.org/publicdomain/zero/1.0/
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-->
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<!-- Reference case for align-items / align-self behavior, using blocks in
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place of flex items and using float and width keywords to emulate the
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align-items / align-self properties. -->
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<style>
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.flexbox {
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border: 1px dashed blue;
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width: 4px;
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float: left;
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font-family: sans-serif;
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font-size: 10px;
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margin-left: 80px;
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}
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.flex-start, .flex-end, .center, .baseline, .stretch {
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clear: both;
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margin: 1px 2px 3px 4px;
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border-width: 2px 3px 4px 5px;
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padding: 3px 4px 5px 6px;
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border-style: dotted;
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}
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div.big {
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font-size: 18px;
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width: 50px;
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}
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/* Classes for each of the various align-self values */
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.flex-start {
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background: lime;
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width: -moz-max-content;
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float: left;
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}
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.flex-end {
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background: orange;
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width: -moz-max-content;
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float: right;
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}
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.center {
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background: lightblue;
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width: -moz-max-content;
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}
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.baseline {
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background: teal;
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width: -moz-max-content;
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}
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.stretch {
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background: pink;
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width: auto;
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}
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</style>
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</head>
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<body>
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<div class="flexbox">
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<div class="flex-start">start</div>
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<div class="flex-start big">a b</div>
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<div class="flex-end">end</div>
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<div class="flex-end big" style="margin-bottom: 4px">a b</div>
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<!-- We're using auto margins as references for "align-self:center", but
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auto margins only work if we've got extra space available, and we
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don't have extra space available in this case. So, we create a
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wide wrapper-div that _will_ have space available. We position
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that wrapper-div using a negative margin, so that centering in it
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is equivalent to centering in our reference for the flex container.
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-->
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<div style="width: 100px; margin-left: -48px">
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<div style="margin: auto; width: -moz-max-content">
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<div class="center">center</div>
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</div>
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<div style="margin: auto; width: -moz-max-content">
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<div class="center big" style="margin-top: 4px">a b</div>
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</div>
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</div>
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</div>
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<!-- NOTE: I'm not using floats in this flex container, since floating
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makes it harder to emulate the "stretch" behavior.
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(We need to use width: auto - not width:100% - because we need to
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allow space for our margins/borders/padding. And width:auto doesn't do
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what we want if we're floated.)
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However, since our children aren't floated, their adjacent vertical
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margins will collapse by default (which doesn't match what happens in
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the testcase, since margins don't collapse in a flexbox). So, we
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compensate for that by bumping up the margin-top value on every
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collapsed top-margin to "4px", which is the total amount of vertical
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margin we're expecting between consecutive flex items in the testcase.
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(4px = 3px margin-bottom + 1px margin-top)
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-->
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<div class="flexbox">
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<div class="baseline">base</div>
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<div class="baseline big" style="margin-top: 4px">abc</div>
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<div class="stretch" style="margin-top: 4px">stretch</div>
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<div class="stretch big" style="margin-top: 4px">a b</div>
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</div>
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</body>
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</html>
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