#image {
  display: block;
  margin: 0px;
  max-width: 100%;
  padding: 0px;
  position: relative;
}

#image>img {
  position: absolute;
  display: none;
  max-width: 100%;
  top: 0;
  left: 0;
  z-index: 1;
}

#main {
  padding: 3em;
}

.item {
  border: 3px dashed yellow;
  display: inline-block;
  margin: 0;
  padding: 0;
  position:absolute;
  z-index: 2;
}

.itemLabel {
  background-color: yellow;
  color: black;
  display: inline-block;
  font-weight: bold;
  margin: 0;
  opacity: 0.5;
  padding: 0.1em;
  position:absolute;
  z-index: 3;
}
.item:hover {
  border: 5px solid yellow;
}