.screenshots a:hover span {
  position: absolute;
  margin-top: -150px;
  right: 60px;
  width: 500px;
  height: 360px;
  border: 1px dashed #cccccc;
  background-color: #eeeeff;
  background-repeat: no-repeat;
  background-position: center center;
}
a#install1:hover span {
  background-image: url(l10n/l10n-install1.png);
}
a#install2:hover span {
  background-image: url(l10n/l10n-install2.png);
}
a#install3:hover span {
  background-image: url(l10n/l10n-install3.png);
}
a#install4:hover span {
  background-image: url(l10n/l10n-install4.png);
}
a#install5:hover span {
  background-image: url(l10n/l10n-install5.png);
}