@keyframes a{0%{opacity:0}30%{opacity:1}to{opacity:1}}.circle{pointer-events:auto;opacity:0}.cont--loop .circle{animation:a 3s .2s ease-in-out infinite alternate}.cont--mouse .circle{transition:.3s ease-in-out;cursor:pointer}@media(any-hover:hover){.cont--mouse .circle:hover{opacity:1}}