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

#datetime {
  position: absolute;
  margin: 20px 0px 0px 20px;
  color: white;
  font-family: monospace;
}
#date {
  font-size: 1.4em;
}
#time {
  font-size: 1.8em;
}

#slider {
  position: absolute;
  bottom: 8vh;
  width: 30vw;
  margin-left: 35vw;
}

@media only screen and (max-device-width: 812px) {
  #slider {
    width: 80vw;
    margin-left: 8vw;
  }
}