H5P.jQuery('#h5p-interactive-book-navigation-menu').mouseenter(function (e) {
    if (!H5P.jQuery('#h5p-interactive-book-navigation-menu>div:hover').length) {
        H5P.jQuery('#h5p-interactive-book-navigation-menu').animate({
            'padding-top': e.pageY - H5P.jQuery("#h5p-interactive-book-navigation-menu").position().top - H5P.jQuery("#h5p-interactive-book-navigation-menu .navigation-list").height() / 2 - H5P.jQuery("#h5p-interactive-book-navigation-menu .h5p-interactive-book-navigation-maintitle").height() / 2
        });
    }
});