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Test Info:

<!doctype html>
<title>The hr element</title>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<style>
#ref {
display: block;
unicode-bidi: isolate;
color: gray;
border-style: inset;
border-width: 1px;
margin: 0.5em auto;
/* TODO: uncomment this when these properties are widely supported
margin-block-start: 0.5em;
margin-inline-end: auto;
margin-block-end: 0.5em;
margin-inline-start: auto;
*/
overflow: hidden;
}
</style>
<hr id=test>
<div id=ref></div>
<script>
setup(() => {
self.testStyle = getComputedStyle(document.getElementById('test'));
self.refStyle = getComputedStyle(document.getElementById('ref'));
});
['display',
'unicodeBidi',
'color',
'borderTopStyle',
'borderRightStyle',
'borderBottomStyle',
'borderLeftStyle',
'borderTopWidth',
'borderRightWidth',
'borderBottomWidth',
'borderLeftWidth',
'marginTop',
'marginRight',
'marginBottom',
'marginLeft',
'overflow',
// Extra tests
'height',
'box-sizing',
].forEach(prop => {
test(() => {
assert_equals(testStyle[prop], refStyle[prop]);
}, prop);
});
</script>