#image-map {
  position: relative;
  display: inline-block;
  max-width: 850px;
}

#image-map img {
  display: block;
  width: 100%;
  height: auto;
  border: 0;
}

#image-map a {
  position: absolute;
  background-color: #fff;
  color: #000;
  border: 1px solid #000;
  border-radius: 50%;
  width: 30px;
  height: 30px;
  text-align: center;
  line-height: 30px;
  font-size: 12px;
  font-weight: bold;
  transition: all 0.2s ease-in-out;
}

#image-map a:hover {
  background-color: #2ab0ff;
  color: #fff;
  cursor: pointer;
}