.second-row {
  position: absolute;
  top: -40px;
  bottom: 0;
  width: 100%;
  border-top-style: solid;
  border-top-color: black;
}

@media screen and (max-width: 500px) {
  .second-row {
    top: 0px;
  }
}

#map {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 100%;
}