style.css

#sidebar {
  z-index: 9999;
  overflow-y: scroll;
  opacity: 0.9;
}

@media screen and (min-width:30em) {
  #sidebar {
    max-height: calc(100vh - 2rem);
    height: auto;
    width: 460px;
  }
}


.markerActive {
  border: 4px solid rgba(0,0,0,0.1);
  /* Move up 4px and left 4px to account for border,
    to make sure the active marker doesn't move */
  margin: -24px 0 0 -24px !important; 
}

.leaflet-marker-icon:hover {
  opacity: 0.8;
}

a {
  color: #528e9e;
  text-decoration: none;
}

a:hover {
  opacity: 0.8;
}

.leaflet-control {
  border: 1px solid rgba(0,0,0,0.1) !important;
  border-radius: 2px !important;
}

.leaflet-control-layers-expanded {
  font-size: 1.2em;
  line-height: 1.2em;
}

.leaflet-control-layers-expanded label {
  cursor: pointer;
}

.leaflet-control-layers-expanded label:hover {
  opacity: 0.8;
}

.home-button {
  height: 24px;
  width: 24px;
  background-color: white;
  padding: 3px;
  cursor: pointer !important;
  border: 1px solid black;
}

.home-button:hover {
  background-color: rgb(239, 239, 239);
}

#gallery {
  position: relative;
}

.material-icons.arrow {
  font-size: 60px;
  position: relative;
  display: block;
  width: 0;
  height: 0;
  position: absolute;
  top: 50%;
  margin-top: -30px;
  text-shadow: 0 0 4px gray;
}

.material-icons.arrow.arrow-left {
  left: 0;
}

.material-icons.arrow.arrow-right {
  right: 0;
  margin-right: 60px;
}