@keyframes rise{0%{opacity:0;transform:translateY(0)scale(1)}50%{opacity:1}to{opacity:0;transform:translateY(-100px)scale(0)}}.fire-ember{background:#f50;border-radius:50%;width:4px;height:4px;animation:2s linear infinite rise;position:absolute;bottom:0;box-shadow:0 0 10px #f50,0 0 20px #fa0}