<script>
(function($) {
    var bouncedContent = $('.ud-content.bounce_out');
    if ( bouncedContent.length ) {
        bouncedContent.on( 'mouseenter', function() {
            $(this).closest('.et_pb_column').css('z-index', '99');
        });
        bouncedContent.on( 'mouseleave', function() {
            $(this).closest('.et_pb_column').css('z-index', '9');
        });
    }
})(jQuery)
</script>