#top a.avia_image:focus-visible:after {
  position: absolute;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  background-color: rgba(255,255,255,0.5);
  backdrop-filter: blur(3px);
  background-repeat: no-repeat;
  background-size: cover;
  font-size: 24px;
  color: #000;
  z-index: 5;
  content: attr(aria-label);  
}