.static-map-link {
  position: relative;
  display: block;
  height: 200px;
  width: 200px;
  text-decoration: none !important;
}

.static-map-link:hover .static-map {
  opacity: 0.3;
}

.static-map-link:after {
  content: 'Show on map';
  left: 0;
  top: 0;
  position: absolute;
  background: rgba(0, 0, 0, 0.5);
  width: 100%;
  height: 100%;
  transition: 0.5s ease;
  opacity: 0;
  color: white;
  font-size: 18px;
  text-align: center;
  padding: 20px 0;
}

.static-map-link:hover:after {
  opacity: 1;
}