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<!DOCTYPE html>
<title>Resolving viewport units</title>
<link rel="help" href="https://drafts.csswg.org/css-values-4/#viewport-relative-lengths">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
iframe {
width: 200px;
height: 100px;
}
</style>
<iframe id=iframe></iframe>
<script>
const doc = iframe.contentDocument;
const win = iframe.contentWindow;
function test_computed_value(value, expected) {
test((t) => {
t.add_cleanup(() => { doc.body.innerHTML = ''; });
doc.body.innerHTML = `
<!doctype html>
<style>
* { margin: 0; }
body { height: 100%; }
div { height: ${value}; }
</style>
<div></div>
`;
let div = doc.querySelector('div');
assert_equals(win.getComputedStyle(div).height, expected);
}, `${value} computes to ${expected}`);
}
test_computed_value('100vw', '200px');
test_computed_value('100vi', '200px');
test_computed_value('100vmax', '200px');
test_computed_value('100svw', '200px');
test_computed_value('100svi', '200px');
test_computed_value('100svmax', '200px');
test_computed_value('100lvw', '200px');
test_computed_value('100lvi', '200px');
test_computed_value('100lvmax', '200px');
test_computed_value('100dvw', '200px');
test_computed_value('100dvi', '200px');
test_computed_value('100dvmax', '200px');
test_computed_value('100vh', '100px');
test_computed_value('100vb', '100px');
test_computed_value('100vmin', '100px');
test_computed_value('100svh', '100px');
test_computed_value('100svb', '100px');
test_computed_value('100svmin', '100px');
test_computed_value('100lvh', '100px');
test_computed_value('100lvb', '100px');
test_computed_value('100lvmin', '100px');
test_computed_value('100dvh', '100px');
test_computed_value('100dvb', '100px');
test_computed_value('100dvmin', '100px');
test_computed_value('1dvw', '2px');
test_computed_value('10dvw', '20px');
test_computed_value('1dvh', '1px');
test_computed_value('10dvh', '10px');
test_computed_value('calc(1dvw + 1dvw)', '4px');
test_computed_value('calc(1dvw + 1dvh)', '3px');
test_computed_value('calc(1dvw + 100px)', '102px');
test_computed_value('max(1svw, 1svh)', '2px');
test_computed_value('min(1lvw, 1lvh)', '1px');
test_computed_value('calc(1dvw + 10%)', '12px');
</script>
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