For "The Insanely Illustrated Guide To Your First Tile Mill Map," dataforradicals.com

gistfile1.txt

Map {
background-color: #b8dee6;
}
 
#countries {
::outline {
line-color: #1889a2 ;
line-width: 2;
line-join: round;
}
polygon-fill: #fff;
}
 
 
// I had to get a states 'shapefile' to upload as a layer to make this part work.
// I used this one, which was pretty crude. You can probably find a better shapefile of US states.
// http://www.arcgis.com/home/item.html?id=f7f805eb65eb4ab787a0a3e1116ca7e5

#states {
 line-color:#1889a2;  
  line-width:0.5;
  line-join: round;
}
 
 
// One of the layers I uploaded was a spreadsheet of cities in RI along with the number of
// kids involved in early childhood "Early Intervention" programs.
// The column containing the # of kids was titled "KidsInEI".

 //#RI-KIDS {
 
//  With Carto I was able to change the size of the marker based on how many kids in a city were enrolled in EI.
//  More information on that here: http://mapbox.com/tilemill/docs/crashcourse/styling/
// [KidsInEI >= 200] { marker-width:25; }
// [KidsInEI <= 150] { marker-width:20; }
// [KidsInEI <= 100] { marker-width: 15; }
// [KidsInEI <= 50] { marker-width: 10; }
// [KidsInEI <= 25] { marker-width: 5;}

  marker-fill: #1889a2;
  marker-line-width: 5;
marker-line-color:#813;
marker-allow-overlap:true
}