1.ball {
2 position: relative;
3 height: 15px;
4 width: 15px;
5 background-color: rgb(255, 44, 44);
6 border-radius: 50%;
7 animation: bounce 0.5s ease-in-out infinite both;
8}
9
10@keyframes bounce {
11 0%, 100% {
12  transform: translate(0px, 0px);
13 }
14
15 50% {
16  transform: translate(0px, 50px) scale(1, 0.77);
17 }
18}