1.mouse-btn {
2  margin: 10px auto;
3  width: 40px;
4  height: 80px;
5  border: 3px solid rgba(122, 122, 124, 0.918);
6  border-radius: 20px;
7  display: flex;
8}
9
10.mouse-scroll {
11  display: block;
12  width: 20px;
13  height: 20px;
14  background: linear-gradient(170deg, rgba(122, 122, 124, 0.918), rgb(123, 124, 124));
15  border-radius: 50%;
16  margin: auto;
17  animation: scrolling13 1s linear infinite;
18}
19
20@keyframes scrolling13 {
21  0% {
22    opacity: 0;
23    transform: translateY(-20px);
24  }
25
26  100% {
27    opacity: 1;
28    transform: translateY(20px);
29  }
30}