.overlay { 
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.7);
  transition: opacity 500ms;
  visibility: visible;
  opacity: 1;
  z-index:100;
}
.overlay:target{
  visibility: hidden;
  opacity: 0;
}


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#popupBody{
    width: 46%;
padding: 2%;
border-radius: 15px;
box-shadow: 0 0 5px #CCC;
background: #FFF;
position: relative;
margin: 20% auto;
transition: all 5s ease-in-out;
}

#cerrar{
    position: absolute;
top: 20px;
right: 30px;
font-size: 60px;
fotn-weight: bold;
text-decoration: none;
color: #F00;
transition: all 200ms;
}

.popupContent{
    margin-top:80px;
    text-align:center;
}

@media all and (min-width:0px) and (max-width: 568px) {
  /* put your css styles in here */
  .popupContent img{
    width:95%;
}
}