.dropdown-content {
    max-height: 250px;
    overflow-x:hidden;
    overflow-y:auto;
}

/* width */
.dropdown-content::-webkit-scrollbar {
    width: 10px;
}

/* Track */
.dropdown-content::-webkit-scrollbar-track {
    box-shadow: inset 0 0 1px grey;
    border-radius: 10px;
}

/* Handle */
.dropdown-content::-webkit-scrollbar-thumb {
    background: #405983;
    border-radius: 10px;
}

/* Handle on hover */
.dropdown-content::-webkit-scrollbar-thumb:hover {
    background: #203963;
}