.blink {
  animation:1s blinker linear infinite;
  -webkit-animation:1s blinker linear infinite;
  -moz-animation:1s blinker linear infinite;
  color: red;
}

@-moz-keyframes blinker {  
  0% { opacity: 1.0; }
  50% { opacity: 0.0; }
  100% { opacity: 1.0; }
}

@-webkit-keyframes blinker {  
  0% { opacity: 1.0; }
  50% { opacity: 0.0; }
  100% { opacity: 1.0; }
}

@keyframes blinker {  
  0% { opacity: 1.0; }
  50% { opacity: 0.0; }
  100% { opacity: 1.0; }
}

.social {
	width: 40%;
	margin: 2%; /*un po di spazio tra i div*/
	display: inline-block; /*questi div saranno posti uno a fianco all'altro*/
}