.product_download a {
  display:block;
  margin:5px 0 0;
  height:20px;
  width:90px;
  text-indent:-1000px;
  background:transparent url(/images/pt/standard/download_button.png) no-repeat 0 0;
}
.product_download a:hover {
  background-position:0 -20px;
}
.product_download a.play-video {
  background:transparent url(/images/pt/standard/download_button.png) no-repeat 0 -40px;
}
.product_download a.play-video:hover {
  background-position:0 -60px;
}
.product_download a.visit-site {
  background:transparent url(/images/pt/standard/download_button.png) no-repeat 0 -80px;
}
.product_download a.visit-site:hover {
  background-position:0 -100px;
}

.product_download a.more-details {
  background:transparent url(/images/pt/standard/download_button.png) no-repeat 0 -200px;
}
.product_download a.more-details:hover {
  background-position:0 -220px;
}
.product_download a.listen {
  background:transparent url(/images/pt/standard/download_button.png) no-repeat 0 -240px;
}
.product_download a.listen:hover {
  background-position:0 -260px;
}