/* width */
.nav::-webkit-scrollbar {
    width: 4px;
    /* height: 4px; */
}
::-webkit-scrollbar {
    width: 7px;
    height:4px;
}
/* Track */
::-webkit-scrollbar-track {
    background: #f1f1f1;
}

/* Handle */
::-webkit-scrollbar-thumb {
    background: #888;
}

/* Handle on hover */
::-webkit-scrollbar-thumb:hover {
    background: #555;
}