.bubble{position:absolute;bottom:-50px;background:#fff6;border-radius:50%;box-shadow:inset -2px -2px 4px #0000001a,inset 2px 2px 6px #fff9;-webkit-backdrop-filter:blur(1px);backdrop-filter:blur(1px);pointer-events:none;animation:fizz-rise linear infinite}@keyframes fizz-rise{0%{transform:translateY(0) translate(0);opacity:0}20%{opacity:.7;transform:translateY(-20vh) translate(-10px)}50%{transform:translateY(-50vh) translate(15px)}80%{opacity:.7;transform:translateY(-80vh) translate(-5px)}to{transform:translateY(-110vh) translate(5px);opacity:0}}@media(prefers-reduced-motion:reduce){.bubble{animation:none}}