CSS
@-webkit-keyframes heartbeat {
0% { -webkit-transform: scale(1); }
50% { -webkit-transform: scale(0.9); }
100% { -webkit-transform: scale(1); }
}
.backbutton img:hover
{
-webkit-animation-name: heartbeat;
-webkit-animation-duration: 300ms;
-webkit-transform-origin:50% 50%;
-webkit-animation-iteration-count: 2;
-webkit-animation-timing-function: linear;
}
