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<!doctype html>
<meta charset=utf-8>
<title>Presentational hint for iframe frameborder</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id="log"></div>
<div data-expect="0px">
<iframe frameborder></iframe>
<iframe frameborder=0></iframe>
<iframe frameborder=-0></iframe>
<iframe frameborder=0.5></iframe>
<iframe frameborder=0.5e1></iframe>
<iframe frameborder=no></iframe>
<iframe frameborder=none></iframe>
<iframe frameborder=error></iframe>
</div>
<div data-expect="2px">
<iframe></iframe>
<iframe frameborder=1></iframe>
<iframe frameborder=-1></iframe>
<iframe frameborder=10></iframe>
<iframe frameborder=-10></iframe>
</div>
<script>
const iframes = document.querySelectorAll('iframe');
const borderWidthProps = ['border-top-width', 'border-right-width', 'border-bottom-width', 'border-left-width'];
for (const iframe of iframes) {
test(() => {
const computed = getComputedStyle(iframe);
const expectedBorderWidth = iframe.parentNode.dataset.expect;
for (const prop of borderWidthProps) {
assert_equals(computed.getPropertyValue(prop), expectedBorderWidth, prop);
}
assert_equals(computed.getPropertyValue('border-style'), 'inset', 'border-style');
assert_equals(computed.getPropertyValue('border-color'), getComputedStyle(document.documentElement).color, 'border-color');
}, iframe.outerHTML);
}
</script>
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