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<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Overflow: event.target for detached ::scroll-button is scroller</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-actions.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<style>
body {
margin: 0;
}
#scroller {
position: absolute;
top: 100px;
width: 600px;
height: 300px;
overflow: auto;
white-space: nowrap;
}
#scroller div {
display: inline-block;
width: 600px;
height: 200px;
}
.sbtn::scroll-button(inline-end) {
position: absolute;
top: 0;
left: 0;
content: "";
width: 100px;
height: 20px;
}
</style>
<div id="scroller" class="sbtn">
<div></div>
<div></div>
</div>
<script>
let event = null;
scroller.addEventListener('click', (e) => {
event = e;
});
promise_test(async t => {
// Click on ::scroll-button
const scrollButtonX = 15;
const scrollButtonY = 15;
await new test_driver.Actions()
.pointerMove(scrollButtonX, scrollButtonY)
.pointerDown()
.pointerUp()
.send();
assert_equals(event.target, scroller, "event.target for ::scroll-button click is scroller");
scroller.classList.remove("sbtn");
assert_equals(event.target, scroller, "event.target for detached ::scroll-button click is scroller");
});
</script>