<!DOCTYPE html>
<html>
<head>
    <script>
    if (window.testRunner) {
        testRunner.dumpAsText();
    }
    </script>
    <style>
    details {
        display: grid;
        -webkit-columns: 5;
    }
    div {
        display: grid;
    }
    input {
        -webkit-columns: 5;
    }
    </style>
</head>
<body>
    <p>This test passes if it does not crash in debug mode.</p>
    <details open>
        <button>
            <div>
                <input placeholder="testing" />
            </div>
        </button>
    </details>
</body>
</html>