[rel="#urun_detay_tab2"] {
  color: red !important;
  font-weight: bold;
  animation: blink 2s infinite;
}

.badge.pull-right {
  background-color: red !important;
  color: white !important;
  font-weight: bold;
  animation: blink 2s infinite;
}

@keyframes blink {
  0%, 50%, 100% { opacity: 1; }
  25%, 75% { opacity: 0; }
}