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<!doctype html>
<link rel="author" title="Di Zhang" href="mailto:dizhangg@chromium.org">
<link rel="help" href="https://html.spec.whatwg.org/multipage/rendering.html#the-meter-element-2">
<title>Meter appearance native writing mode computed style</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<meter value="40" min="0" max="100" style="writing-mode: horizontal-tb"></meter>
<meter value="40" min="0" max="100" style="writing-mode: vertical-lr"></meter>
<meter value="40" min="0" max="100" style="writing-mode: vertical-rl"></meter>
<script>
test(() => {
const meter = document.querySelector(`meter[style="writing-mode: horizontal-tb"]`);
const style = getComputedStyle(meter);
const blockSize = parseInt(style.blockSize, 10);
const inlineSize = parseInt(style.inlineSize, 10);
assert_not_equals(blockSize, 0);
assert_not_equals(inlineSize, 0);
assert_greater_than(inlineSize, blockSize);
assert_equals(style.blockSize, style.height);
assert_equals(style.inlineSize, style.width);
}, `meter[style="writing-mode: horizontal-tb"] block size should match height and inline size should match width`);
for (const writingMode of ["vertical-lr", "vertical-rl"]) {
test(() => {
const meter = document.querySelector(`meter[style="writing-mode: ${writingMode}"]`);
const style = getComputedStyle(meter);
const blockSize = parseInt(style.blockSize, 10);
const inlineSize = parseInt(style.inlineSize, 10);
assert_not_equals(blockSize, 0);
assert_not_equals(inlineSize, 0);
assert_greater_than(inlineSize, blockSize);
assert_equals(style.blockSize, style.width);
assert_equals(style.inlineSize, style.height);
}, `meter[style="writing-mode: ${writingMode}"] block size should match width and inline size should match height`);
};
</script>
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