custom browser scrollbar

/* width */
::-webkit-scrollbar {
  width: 5px;
}

/* Track */
::-webkit-scrollbar-track {
  background: black;
}

/* Handle */
::-webkit-scrollbar-thumb {
  background: #900;

}

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

/* firefox */

html {
  scrollbar-width: thin;
  scrollbar-color: #900 #555;
 }