<title>CSS Borders: CSSOM for border-*-width: thin, medium, thick</title>

<link rel="help" href="https://drafts.csswg.org/css-backgrounds-3/#border-width">

<meta name="assert" content="getComputedStyle() for 'border-*-width' with values thin, medium, thick, returns 1px, 3px, and 5px, respectively." />

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

.thin { border: solid thin; }

.medium { border: solid medium; }

.thick { border: solid thick; }

<div class=thin data-expected=1px></div>

<div class=medium data-expected=3px></div>

<div class=thick data-expected=5px></div>

<script>

let divs = document.querySelectorAll('div');

let props = ['border-top-width', 'border-right-width', 'border-bottom-width', 'border-left-width'];

for (let div of divs) {

let style = getComputedStyle(div);

for (let prop of props) {

test(() => {

assert_equals(style.getPropertyValue(prop), div.dataset.expected);

}, `${prop}: ${div.className} is ${div.dataset.expected}`);

}

}

</script>