.ring-container{position:relative}.circle{border-radius:50%;width:40%;height:40%;position:absolute;top:30%;left:30%}.ringring{opacity:0;border:2px solid;border-radius:50%;width:100%;height:100%;animation:2s ease-out infinite pulsate}@keyframes pulsate{0%{opacity:0;-webkit-transform:scale(.1)}50%{opacity:1}to{opacity:0;-webkit-transform:scale(1.2)}}