.box .seta_verde
{
  background: url("../layout/nmaster_sprite.png") repeat scroll -1012px 0 transparent;
  display: block;
  height: 48px;
  position: absolute;
  right: 19px;
  top: -3px;
  width: 45px;
}
.box .seta_vermelha
{
  background: url("../layout/nmaster_sprite.png") repeat scroll -1113px 0 transparent;
  display: block;
  height: 48px;
  position: absolute;
  right: 19px;
  top: -3px;
  width: 45px;
}