body, html {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
  }

#map {
    height: 400px;
    width: 100%;
  }

@media (max-width: 640px) {
  #map {
    width: 100%;
    height: 200px;
}}

html {
  scroll-behavior: smooth;
}