style.css

.leaflet-touch .leaflet-bar a {
  width: 2rem;
  height: auto;
  padding: .25rem;
}
.leaflet-touch .leaflet-control-geocoder-icon {
  width: 2rem;
  height: auto;
  padding: .25rem;
}
.leaflet-control-geocoder-icon {
  display: inline-block;
  font-weight: 400;
  line-height: 1.5;
  color: #212529;
  text-align: center;
  text-decoration: none;
  vertical-align: middle;
  cursor: pointer;
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
  background-color: white;
  border: 1px solid transparent;
  padding: .25rem;
  font-size: 1rem;
  border-radius: .25rem;
  transition: color .15s ease-in-out,background-color .15s ease-in-out,border-color .15s ease-in-out,box-shadow .15s ease-in-out;
}
.rect-btn {
  background-color: white;
  padding: .175rem .25rem;
}
#downloadbtn {
  background-color: green;
  color: white;
}