labels on carto

gistfile1.txt

#{table_name}{
  text-face-name: "DejaVu Sans Book";
  text-fill:#000;
  text-size:10;
  text-halo-fill:rgba(255,255,255,1);
  text-halo-radius:1;
  text-line-spacing:1;
  text-wrap-width:20;
  text-opacity:.7;
  text-allow-overlap:true;
  text-name:"[{desired_column}]";
  line-width:1.3;
  ::outline {
    line-color:#000;
    line-width: 5;
    line-opacity: .1;
  }
}