.thumbnail{
position: relative;
z-index: 0;
}

.thumbnail:hover{
background-color: transparent;
z-index: 50;
}

.thumbnail span{ /* CSS for enlarged image */
position: absolute;
background-color: #FF7900;
padding: 5px;
left: 0px;
border: 1px dashed gray;
visibility: hidden;
color: black;
text-decoration: none;
}

.thumbnail span img{ /* CSS for enlarged image */
border-width: 0;
padding: 2px;
width: 400px;
height: 300px;
}

.thumbnail:hover span{ /* CSS for enlarged image on hover */
visibility: visible;
top: -360px;
}

#blanket {
   background-color:#111;
   opacity: 0.75;
   position:absolute;
   z-index: 51;
   top:0px;
   left:0px;
   width:100%;
	 height: 100%;
}
#errorPopUpWhite {
  position:absolute;
	border: solid black 2px; 
	background-color: rgb(255,255,255); 
	width:400px;
	height:300px;
	top:100px;
  left:400px;
	z-index: 50;
}
#errorPopUp {
  position:absolute;
	border: solid black 2px;
  padding: 10px; 
	background-color: rgb(255,255,255); 
	text-align: justify; 
	width:400px;
	height:300px;
	top:100px;
  left:400px;
	z-index: 52;
}