h6 
{
 color: indigo;
text-align:center;
font-weight:bold;
font-size:small;
background-color:yellow;
width:30px;

animation:blinkText 1s infinite;
}
@keyframes blinkText
{
  0%{opacity:0.1;}
100%{opacity:1;
text-shadow: 1px 0px 10px cyan;}
}