1.loader {
2  width: 60px;
3  height: 60px;
4  background: linear-gradient(#ff8a00 calc(1*100%/6),#fff 0 calc(3*100%/6),#ff8a00 0),
5            linear-gradient(#ff8a00 calc(2*100%/6),#fff 0 calc(4*100%/6),#ff8a00 0),
6            linear-gradient(#ff8a00 calc(3*100%/6),#fff 0 calc(5*100%/6),#ff8a00 0);
7  background-size: 15px 400%;
8  background-repeat: no-repeat;
9  animation: matrix 1s infinite linear;
10}
11
12@keyframes matrix {
13  0% {
14    background-position: 0% 100%, 50% 100%, 100% 100%
15  }
16
17  100% {
18    background-position: 0% 0%, 50% 0%, 100% 0%
19  }
20}