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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/css-flexbox/hittest-overlapping-margin.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<link rel="author" title="Andrew Comminos" href="mailto:acomminos@fb.com" />
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
#container {
width: 600px;
display: flex;
}
#left {
width: 300px;
overflow: hidden;
white-space: nowrap;
background: rgba(200, 200, 200, 0.8);
}
#right {
width: 300px;
background-color: rgba(0, 128, 0, 0.8);
margin-left: -100px;
}
</style>
<div id="container">
<a id="left" href="#">foofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoofoo</a>
<div id="right"></div>
</div>
<div id="log"></div>
<script>
test(function(t)
{
const container = document.querySelector('#container');
// Target the intersection of the two child elements.
// The occluded link should not be clickable.
const x = container.offsetLeft + 250;
const y = container.offsetTop + 5;
var element = document.elementFromPoint(x, y);
assert_equals(element.nodeName, 'DIV');
assert_equals(element.id, 'right');
}, "Flexboxes should perform hit testing in reverse paint order for overlapping elements: negative margin case (crbug.com/844505)");
</script>