.dropdown-menu .dropdown-menu {
    position: absolute;
    left: 100%;
    top: 0;
    margin-left: 0.15rem;
}

.dropdown-item.dropdown-toggle::after {
    display: none;
}

.dropdown-submenu {
    position: relative;
}

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

.dropdown-menu .dropdown-item {
    pointer-events: auto;
    cursor: pointer;
}

.dropdown-menu .dropdown-item:hover {
    background-color: #f8f9fa;
}