#map {
  height: 81%;
  width: 96%;
  padding: 0;
  margin: 0;
}

#content {
  font-size: 1em;
}

#osm {
  font-size: 0.7em;
  font-style: italic;
  margin-bottom: 20px;
}

#btn-back-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: none;
}