CartoDBtut.css

/** choropleth visualization */

#bird_tracking{
    marker-fill-opacity: 0.8;
    marker-line-color: #FFF;
    marker-line-width: 0.5;
    marker-line-opacity: 1;
    marker-width: 7;
    marker-fill: #F2D2D3;
    marker-allow-overlap: true;
}
#bird_tracking [ altitude <= 6965] {
    marker-fill: #C1373C;
}
#bird_tracking [ altitude <= 634] {
    marker-fill: #CC4E52;
}
#bird_tracking [ altitude <= 338.5] {
    marker-fill: #D4686C;
}
#bird_tracking [ altitude <= 66.5] {
    marker-fill: #EBB7B9;
}
#bird_tracking [ altitude <= -205.5] {
    marker-fill: #F2D2D3;
}