.wrapper {
  display: block;
  margin: 5em auto;
  border: 1px solid blue;
  width: 700px;
  height: 350px;
  position: relative;
}
p{text-align:center;}
.label {
  height: 1em;
  padding: .3em;
  background: rgba(255, 20, 255, .8);
  position: absolute;
  display: none;
  color:white;
  
}