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<!DOCTYPE html>
<html>
<title>CSS aspect-ratio: Test flex item's resolved width/min-width with border-box box-sizing in a row flex container</title>
<link rel="author" title="Ting-Yu Lin" href="mailto:tlin@mozilla.com">
<link rel="author" title="Mozilla" href="https://www.mozilla.org/">
<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#aspect-ratio">
<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#aspect-ratio-minimum">
<link rel="help" href="https://drafts.csswg.org/css-flexbox-1/#min-size-auto">
<link rel="match" href="../../reference/ref-filled-green-200px-square.html" />
<style>
.flexContainer {
display: flex;
flex-direction: row;
width: 1px;
}
.item {
background: green;
padding-top: 15px;
padding-left: 10px;
box-sizing: border-box;
}
</style>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<!-- In all of the subtests here, each flex item's automatic minimum width is
resolved directly from its content size suggestion. Notably, these items
*do not* get a "transferred size suggestion", because they are all
*non-replaced* elements; and "transferred size suggestion" is only used
for resolving automatic minimum sizes on *replaced* elements. However,
note that we do "transfer" sizes through the aspect ratio, as part of
computing the content size suggestion and/or flex base size. -->
<!-- In the following four flex containers, the aspect-ratio works with border-box. -->
<div class="flexContainer" style="width: auto;">
<!-- The border-box height 25px is transferred to the main axis,
yielding a resolved flex base size (border-box) of 200px. -->
<div class="item" style="min-width:0; height: 25px; aspect-ratio: 8/1;"></div>
</div>
<div class="flexContainer">
<!-- The content size suggestion (border-box) is 200px because the
border-box height 25px is transferred to the main axis. -->
<div class="item" style="height: 25px; aspect-ratio: 8/1;"></div>
</div>
<div class="flexContainer">
<!-- The content size suggestion (border-box) is 200px because the
border-box height 25px (enforced by min-height) is transferred to the
main axis. -->
<div class="item" style="min-height: 25px; aspect-ratio: 8/1;"></div>
</div>
<div class="flexContainer">
<!-- The content size suggestion (border-box) is 200px because the
border-box height 25px (clamped by max-height) is transferred to the
main axis. -->
<div class="item" style="max-height: 25px; height: 100px; aspect-ratio: 8/1;"></div>
</div>
<!-- In the following four flex containers, the aspect-ratio works with content-box
because its value contains 'auto'. -->
<div class="flexContainer" style="width: auto;">
<!-- The content-box height 10px is transferred to the main axis,
yielding a resolved flex base size (content-box) of 190px. -->
<div class="item" style="min-width:0; height: 25px; aspect-ratio: auto 19/1;"></div>
</div>
<div class="flexContainer">
<!-- The content size suggestion (content-box) is 190px because the
content-box height 10px is transferred to the main axis. -->
<div class="item" style="height: 25px; aspect-ratio: auto 19/1;"></div>
</div>
<div class="flexContainer">
<!-- The content size suggestion (content-box) is 190px because the
content-box height 10px (enforced by min-height) is transferred to the
main axis. -->
<div class="item" style="min-height: 25px; aspect-ratio: auto 19/1;"></div>
</div>
<div class="flexContainer">
<!-- The content size suggestion (content-box) is 190px because the
content-box height 10px (clamped by max-height) is transferred to the
main axis. -->
<div class="item" style="max-height: 25px; height: 100px; aspect-ratio: auto 19/1;"></div>
</div>
</html>
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