/* */

.download-overlay
{
  position: relative;
  display:block;
  color:white;
}
.download-overlay::after
 {
   opacity: 0;
   transition:0.5s linear opacity;
   background:rgba(0, 120, 173, 0.8);
   z-index: 0;
 }
.download-overlay:hover::after
{
  position: absolute;
  top:0;
  left:0;
  width:100%;
  height:100%;
  content:"";
  opacity:1;

}
.download-overlay-center
{
  opacity:0;
  position: absolute;
  width:100%;
  top:50%;
  left:50%;
  transform:translateX(-50%) translateY(-50%);
  transition:0.5s linear opacity;
  z-index: 1;
  color:white;
}
.download-overlay-center *
{
  color:white;
}
.download-overlay:hover .download-overlay-center
{
  opacity:1;
}