#header {
    font-family: Verdana, Arial;
    font-size: 1em;
    overflow: hidden;
    color: #ffffff;
  }
  
  #map {
    height: 100%;
    width: 100%;
    padding: 1em; 
    margin: 1em;
  }
  
  #content {
    font-size: 1em;
  }
  
  #osm {
    font-size: 0.7em;
    font-style: italic;
  }