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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS Multi-column Layout: parsing columns with invalid values</title>
<link rel="help" href="https://drafts.csswg.org/css-multicol/#propdef-columns">
<link rel="help" href="https://drafts.csswg.org/css-multicol-2/#propdef-columns">
<meta name="assert" content="columns supports only the grammar '[ <'column-width'> || <'column-count'> ] [ / <'column-height'> ]?'.">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/parsing-testcommon.js"></script>
</head>
<body>
<script>
// Invalid keyword.
test_invalid_value("columns", "none");
// Only column-count can be unitless.
test_invalid_value("columns", "10px 20px");
test_invalid_value("columns", "10 20");
// column-count needs to be 1 or more.
test_invalid_value("columns", "0 0");
test_invalid_value("columns", "0 7px");
// Excess keywords.
test_invalid_value("columns", "auto auto auto");
test_invalid_value("columns", "10em auto auto");
test_invalid_value("columns", "initial initial");
test_invalid_value("columns", "inherit inherit");
// With "/ <'column-height'>"
test_invalid_value("columns", "/ 100px");
test_invalid_value("columns", "/ auto");
test_invalid_value("columns", "/");
test_invalid_value("columns", "auto /");
test_invalid_value("columns", "100px /");
test_invalid_value("columns", "2 /");
test_invalid_value("columns", "2 100px /");
test_invalid_value("columns", "100px 2 /");
</script>
</body>
</html>
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