$xs: 480px;
$sm: 768px;
$md: 992px;
$lg: 1200px;
$xl: 1600px;
@mixin scrollBar {
  &::-webkit-scrollbar-track-piece {
    background: #d3dce6;
  }
  &::-webkit-scrollbar {
    width: 6px;
  }
  &::-webkit-scrollbar-thumb {
    background: #99a9bf;
    border-radius: 20px;
  }
}