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<!DOCTYPE html>
<title>aspect-ratio flex item</title>
<link rel="help" href="https://drafts.csswg.org/css-flexbox/#algo-main-item" title="Part E">
<link rel="match" href="../reference/ref-filled-green-100px-square.xht" />
<meta name="assert" content="% max-height is updated when height of parent changes when %max-height affects max-content size of item">
<style>
#target {
display: flex;
align-items: start;
width: 50px;
height: 50px;
}
img {
/* Remove min-width:auto because it complicates things. */
min-width: 0px;
max-height: 100%;
background: green;
}
</style>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div id="target">
<!-- This image's natural size is 1000x1000 -->
<img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAA+gAAAPoAQMAAAB3bUanAAAAA1BMVEUAAACnej3aAAAAAXRSTlMAQObYZgAAAKpJREFUeNrswYEAAAAAgKD9qRepAgAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABg9uBAAAAAAADI/7URVFVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVWlPTgkAAAAABD0/7UrbAAAAADMAuw/AAGdJWCbAAAAAElFTkSuQmCC
">
</div>
<script>
document.body.offsetTop;
target.style.width = '100px';
document.body.offsetTop;
target.style.height = '100px';
</script>
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