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Test Info:

  • This WPT test may be referenced by the following Test IDs:
<!DOCTYPE html>
<title>The fieldset element: block formatting context</title>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<style>
* {
margin: 0;
padding: 0;
}
fieldset { border: none; }
.float {
float: left;
width: 50px;
height: 50px;
background-color: orange;
}
</style>
<div class=float></div>
<fieldset><div class=float></div></fieldset>
<script>
test(() => {
const fieldset = document.querySelector('fieldset');
assert_equals(fieldset.offsetTop, 0, 'fieldset.offsetTop');
assert_equals(fieldset.offsetLeft, 50, 'fieldset.offsetLeft');
assert_equals(fieldset.clientHeight, 50, 'fieldset.clientHeight');
});
</script>