#menuPC {
    display: flex;
}

#menuMobile {
    display: none;
}

.dropdown-menu li {
    position: relative;
}

.dropdown-menu .submenu {
    display: none;
    position: absolute;
    left: 100%;
    top: -7px;
}

.dropdown-menu > li:hover > .submenu {
    display: block;
}

.navbar-nav > li:hover > .submenu {
    display: block;
}

.dropdown-item:link {
    color: black;
    font: 15px verdana;
}

.dropdown-item:visited {
    color: black;
    font: 15px verdana;
}

.dropdown-toggle:link {
    color: white;
    font: bold 15px verdana;
}

.dropdown-toggle:visited {
    color: white;
    font: bold 15px verdana;
}

@media only screen and (max-width: 991px) {
    #menuPC{
        display:none;
    }

    #menuMobile {
        display: flex;
    }

    .dropdown-menu .submenu {
        display: none;
        position: absolute;
        top: 100%;
        left: 15%;
    }
}