.boton-saltar {
  font-family: sans-serif;
  background: #000;
  color: #fff;
  -webkit-border-radius: 4px;
  -moz-border-radius: 4px;
  border-radius: 4px;
  font-size: 16px;
  position: absolute;
  display: block;
  right: 20px;
  bottom: 20px;
  padding: 5px 10px;
  opacity: 0.6;
  text-decoration: none;
  z-index: 100;
}
.boton-saltar:hover {
  opacity: 1;
}
@media (min-width: 576px) {
}

@media (min-width: 768px) {
}

@media (min-width: 992px) {
  .boton-saltar {
    padding: 7px 15px;
    opacity: 0.5;
    right: 30px;
    bottom: 30px;
  }

}