/* For WebKit browsers */
::-webkit-scrollbar {
  width: 30px;
}

::-webkit-scrollbar-track {
  background: #111; /* dark background for track */
}

::-webkit-scrollbar-thumb {
  background-color: #333; /* dark thumb */
  border-radius: 10px;
  border: 3px solid #111; /* match track background */
}

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: gray #111;
}