$ds-s-100: 100;
$ds-s-125: 125;
$ds-s-150: 150;
$ds-s-200: 200;
$ds-s-250: 250;
$ds-s-300: 300;
$ds-s-350: 350;
$ds-s-400: 400;
$ds-s-500: 500;
$ds-s-012: 012;
$ds-s-025: 025;
$ds-s-050: 050;
$ds-s-075: 075;