Custom scrollbar

::-webkit-scrollbar {
  width: 16px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  border: 4px solid rgba(0, 0, 0, 0);
  height: 56px;
  background-clip: content-box;
  border-radius: 8px;
  background-color: #aaa ;
}

::-webkit-scrollbar-thumb:hover {
  background-color: #868686;
}