/// Create a table with rounded corners on header top left and top right corners
//// @group Tables
/// @param {value} $r [none] - border-radius top-left & top-right corner
@mixin rounded-table($r) {
  thead tr:first-child :first-child {
    border-top-left-radius: $r;
  }

  thead tr:first-child :last-child {
    border-top-right-radius: $r;
  }
}