#protected {
  polygon-opacity: 0.5;
  polygon-fill: #d0ffab;
  line-color:#555;
  line-opacity:0.8;
  line-dasharray:2,1;
  [zoom <= 3]{ line-width: 0.1; }
  [zoom = 4]{ line-width: 0.1; }
  [zoom = 5]{ line-width: 0.2; }
  [zoom = 6]{ line-width: 0.3; }
  [zoom = 7]{ line-width: 0.4; }
  [zoom = 8]{ line-width: 0.5; }
  [zoom = 9]{ line-width: 0.6; }
  [zoom >= 10]{ line-width:0.8; }
}