vertical scrollbar css

scss

  ::-webkit-scrollbar {
    height: 4px;
    background: rgba($main-color-royalBlue, 0.1);
  }

  ::-webkit-scrollbar-thumb {
    height: 4px;
    background: $main-color-royalBlue;
  }

  ::-webkit-scrollbar-corner {
    background: $main-color-white;
  }