#header-menu #access-secondary {
    display: none;
}

#header-menu #access-secondary ul.menu {
    display: flex;
    flex-direction: column;

}

#open {
    display: none;
    cursor: pointer;
    font-size: 20px;
}

#close {
    display: none;
    font-size: 20px;
    cursor: pointer;
}

@media only screen and (max-width: 960px) {
    #open {
        display: block;
    }
}