.static-img {
  display: block; 
}

iframe {
   max-width: 100%; 
}
.map-container {
  width: 100%;
  margin: auto;
  height: 0;
  padding-top: 38%;
  position: relative;
  display: none; /* Hide for small screens */
  iframe {
    width: 100%;
    height: 100%; /* had to specify height/width */
    position: absolute;
    top: 0; 
    right: 0;
    left: 0; 
    bottom: 0;   
  }
}

/* Medium Screens */
@media all and (min-width: 34.375em) {
  .map-container {
    display: block;
  } 
  .static-img {
    display: none; 
  }
}