Template:CharIcon-UMVC3/styles.css

.ci {
}

.ci-background {
 background: gray; 
 width:max-content; 
 border: solid 1px white;
}

.ci-background:hover {
 border: hidden;
}

.ci:hover {
 border: solid 3px yellow;
 outline: solid 3px yellow;
 outline-offset: 5px;
 animation: blinker 1s linear infinite;
}

@keyframes blinker {
 50% {
  opacity: 0;
 }
}