.background{position:relative}.ball{background-color:rgba(255,255,255,.4);border-radius:50%;filter:blur(1.5px)}.animate,.ball{position:absolute;animation:floatBall linear infinite}.animate{filter:blur(1px)}@keyframes floatBall{0%{transform:translateY(0)}50%{transform:translateY(-15px)}to{transform:translateY(0)}}