@keyframes flickerAnimation {
    0%   { opacity:1; }
    50%  { opacity:0.3; }
    100% { opacity:1; }
}
@-o-keyframes flickerAnimation{
    0%   { opacity:1; }
    50%  { opacity:0.3; }
    100% { opacity:1; }
}
@-moz-keyframes flickerAnimation{
    0%   { opacity:1; }
    50%  { opacity:0.3; }
    100% { opacity:1; }
}
@-webkit-keyframes flickerAnimation{
    0%   { opacity:1; }
    50%  { opacity:0.3; }
    100% { opacity:1; }
}
.animate-flicker:hover i{
    -webkit-animation: flickerAnimation 1s infinite;
    -moz-animation: flickerAnimation 1s infinite;
    -o-animation: flickerAnimation 1s infinite;
    animation: flickerAnimation 1s infinite;
}