#ZoomPrev, #ZoomNext {
  text-decoration:none;
  border:0;
}
  #ZoomPrev span,
  #ZoomNext span {
    position: absolute;
    top: 30%;
    background: #333;
    -moz-border-radius: 4px;
    -webkit-border-radius: 4px;
    opacity: 0;
    filter: alpha(opacity=0);
    color: #fff;
    text-decoration: none;
    border: 0;
    font-size: 1.4em;
    padding: 4px 10px;
  }
  #ZoomPrev span {
    left: 0;
    -moz-border-radius-bottomleft: 0px;
    -moz-border-radius-topleft: 0px;
    -webkit-border-top-left-radius: 0px;
    -webkit-border-bottom-left-radius: 0px;
    padding-left: 20px;
  }
  #ZoomNext span {
    right: 0;
    -moz-border-radius-bottomright: 0px;
    -moz-border-radius-topright: 0px;
    -webkit-border-top-right-radius: 0px;
    -webkit-border-bottom-right-radius: 0px;
    padding-right: 20px;
  }
  #ZoomPrev:hover span,
  #ZoomNext:hover span {
    :opacity: 0.8;
    :filter: alpha(opacity=80);
  }