img.hover-lib-visible {
  color: black;
  z-index: 1000;
  position: absolute;
  top: -3px;

  padding: 5px;
  text-decoration: none;

  background-color: #9C844A;
  background-image: url(../img/loader.gif);
  background-repeat: no-repeat;
  background-position:center;

  -moz-border-radius: 2%;
  border-radius: 6px;

  -webkit-background-clip: padding-box; /* for Safari */
  background-clip: padding-box; /* for IE9+, Firefox 4+, Opera, Chrome */

  border-width: 2px 4px 4px 2px;
  border-style: solid;

  border-color: rgb(90, 90, 90);
  border-color: rgba(180, 180, 180, .5);

  box-shadow:2px 1px 3px #666;
} 

img.hover-lib-visible:hover {
  border-color: rgb(60, 60, 60);
  border-color: rgba(120, 120, 120, .5);
}

img.hover-lib-hidden {
  border-color: rgb(60, 60, 60);
  border-color: rgba(120, 120, 120, .5);
}