Untitled

<!DOCTYPE html>
<html>
    <head>
        <style>
            .example-class:hover {
                background: red;
            }
        </style>
    </head>
    <body>
        <div id="example-id">example text</div>
        <script>
            setTimeout(function () {
                document.getElementById('example-id').className = 'example-class';
            }, 1);
        </script>
    </body>
</html>