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<!DOCTYPE html>
<title>CSS Overflow: Scrollable overflow from flex item with margin-inline-end and "direction: rtl"</title>
<link rel="help" href="https://drafts.csswg.org/css-overflow-3/#scrollable" />
<meta name="assert" content="Flex item contribute its margin-end to parent scroller's scrollable overflow.">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
#container {
width: 100px;
height: 100px;
display: flex;
overflow: scroll;
outline: 1px solid red;
writing-mode: vertical-lr;
direction: rtl;
}
.item {
outline: 2px solid green;
width: 50px;
height: 50px;
margin-inline-end: 950px;
}
</style>
<div id=container>
<div class=item></div>
</div>
<script>
test(() => {
container.style.overflow = "auto";
assert_equals(container.scrollHeight, 950);
}, "Check scrollHeight with overflow: auto");
test(() => {
container.style.overflow = "scroll";
assert_equals(container.scrollHeight, 950);
}, "Check scrollHeight with overflow: scroll");
test(() => {
container.style.overflow = "hidden";
assert_equals(container.scrollHeight, 950);
}, "Check scrollHeight with overflow: hidden");
test(() => {
container.style.overflow = "clip";
assert_equals(container.scrollHeight, 100);
}, "Check scrollHeight with overflow: clip");
test(() => {
container.style.overflow = "visible";
assert_equals(container.scrollHeight, 100);
}, "Check scrollHeight with overflow: visible");
test(() => {
container.style.overflowX = "visible";
container.style.overflowY = "clip";
assert_equals(container.scrollHeight, 100);
}, "Check scrollHeight with overflowX: visible, overflowY: clip");
test(() => {
container.style.overflowX = "visible";
container.style.overflowY = "hidden";
assert_equals(container.scrollHeight, 950);
}, "Check scrollHeight with overflowX: visible, overflowY: hidden");
test(() => {
container.style.overflowX = "visible";
container.style.overflowY = "auto";
assert_equals(container.scrollHeight, 950);
}, "Check scrollHeight with overflowX: visible, overflowY: auto");
</script>
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