gas.gl/dist/geoengine.css

HighPerformance Geojson Data Render with WebGL

.circle-range-tooltip {
  position: absolute;
  background: rgba(51, 51, 51, 0.8);
  color: white;
  padding: 5px;
  border: 1px;
  border-radius: 3px;
  white-space: nowrap;
  -webkit-touch-callout: none; /* iOS Safari */
    -webkit-user-select: none; /* Chrome/Safari/Opera */
     -khtml-user-select: none; /* Konqueror */
       -moz-user-select: none; /* Firefox */
        -ms-user-select: none; /* Internet Explorer/Edge */
            user-select: none; /* Non-prefixed version, currently
                                  not supported by any browser */
}