.calque{
  
  color: #FFFFFF;
  position: absolute;
  visibility : hidden;
  padding: 0px;
  font-family: Courrier;
  font-size: 8pt;
  background-color: #000000;
  opacity: .75; /* firefox*/
  filter: alpha(opacity=75);/* ie*/
  width: 100%;
  height: 100%;
  top : 0;
  left : 0 ;

}

.image_calque{
	height: 100%;
}

.window{
  color: #FFFFFF;
  position: absolute;
  visibility : hidden;
  padding: 0px;
  font-family: Courrier;
  font-size: 8pt;
  background-color: #FFFFFF;
  width: 50%;
  height: 70%;
  top : 15%;
  left : 25% ;

}

.contemp_window{
  width: 100%;
  height: 100%;
  border: 0;
  position: relative;
  z-index: 360;
}