style.css

:root {
  --mdc-theme-primary: #1a73e8;
  --mdc-theme-secondary: #rgb(225, 245, 254);
  --mdc-theme-on-primary: #fff;
  --mdc-theme-on-secondary: rgb(1, 87, 155);
}

/* [START maps_deckgl_points] */
/* Always set the map height explicitly to define the size of the div
       * element that contains the map. */
#map {
  height: 100%;
}

/* Optional: Makes the sample page fill the window. */
html,
body {
  height: 100%;
  margin: 0;
  padding: 0;
}

/* [END maps_deckgl_points] */