<!DOCTYPE html>
<title>Tests that we consider main axis sizes to be definite in column flexboxes
when the height is an explicit definite height, even if the container does
not have a definite main axis size.</title>
<link rel="author" title="Google LLC" href="https://www.google.com/">
<link rel="help" href="https://drafts.csswg.org/css-flexbox/#algo-main-item">
<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
<style>
/* Make it possible for red to appear in webkit/blink browsers. But the test
* still works in other browsers, you'll just get a grey scrollbar that
* shouldn't be there.
*/
::-webkit-scrollbar-track, ::-webkit-scrollbar-thumb, ::-webkit-scrollbar {
width: 10px;
background: red;
}
#flex {
display: flex;
}
#item {
height: 300px;
overflow: auto;
scrollbar-color: red;
}
#child {
height: 600px;
}
</style>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div style="width: 100px; height: 100px; background: green;"></div>
<div id="flex">
<div id="item">
<div id="child">
Text
</div>
</div>
</div>
<script>
var item = document.getElementById('item');
item.offsetHeight;
item.style.width = 0;
</script>