.ball11 {
position: relative;
height: 15px;
width: 15px;
background-color: rgb(255, 44, 44);
border-radius: 50%;
animation: bounce 0.5s ease-in-out infinite both;
}
@keyframes bounce {
0%, 100% {
transform: translate(0px, 0px);
}
50% {
transform: translate(0px, 50px) scale(1, 0.77);
}
}