/* Works on Firefox */

* {
  scrollbar-width: thin;
  scrollbar-color: black #fff;
}

/* Works on Chrome, Edge, and Safari */

*::-webkit-scrollbar {
  width: 8px;
}

*::-webkit-scrollbar-track {
  background: #ffffff;
}

*::-webkit-scrollbar-thumb {
  background-color: #000;
  border-radius: 20px;
  border: 1px solid #fff;
}