<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS Multi-column Layout: parsing columns with valid values</title>
<link rel="help" href="https://drafts.csswg.org/css-multicol/#propdef-columns">
<meta name="assert" content="columns supports the full grammar '<column-width> || <column-count>'.">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/parsing-testcommon.js"></script>
</head>
<body>
<script>
test_valid_value("columns", "auto 3", "3");
test_valid_value("columns", "auto 10em", "10em");
test_valid_value("columns", "3 auto", "3");
test_valid_value("columns", "10em auto", "10em");
test_valid_value("columns", "2 10px", "10px 2");
test_valid_value("columns", "10px 2");
test_valid_value("columns", "auto");
test_valid_value("columns", "auto auto", "auto");
test_valid_value("columns", "7");
test_valid_value("columns", "7em");

// Unitless zero is allowed for column-width.
test_valid_value("columns", "0 1", "0px 1");
test_valid_value("columns", "1 0", "0px 1");
test_valid_value("columns", "0px 1");

// CSS-wide keywords.
test_valid_value("columns", "initial");
test_valid_value("columns", "inherit");
</script>
</body>
</html>
