1.loader {
2  width: 106px;
3  height: 56px;
4  display: block;
5  margin: 30px auto;
6  background-image: linear-gradient(#e1e1e1 50px, transparent 0), linear-gradient(#e1e1e1 50px, transparent 0), linear-gradient(#e1e1e1 50px, transparent 0), linear-gradient(#e1e1e1 50px, transparent 0), radial-gradient(circle 14px, #e1e1e1 100%, transparent 0);
7  background-size: 48px 15px , 15px 35px, 15px 35px, 25px 15px, 28px 28px;
8  background-position: 25px 5px, 58px 20px, 25px 17px, 2px 37px, 76px 0px;
9  background-repeat: no-repeat;
10  position: relative;
11  transform: rotate(-45deg);
12  box-sizing: border-box;
13}
14
15.loader::after,
16.loader::before {
17  content: '';
18  position: absolute;
19  width: 56px;
20  height: 56px;
21  border: 6px solid #e1e1e1;
22  border-radius: 50%;
23  left: -45px;
24  top: -10px;
25  background-repeat: no-repeat;
26  background-image: linear-gradient(#e1e1e1 64px, transparent 0), linear-gradient(#e1e1e1 66px, transparent 0), radial-gradient(circle 4px, #e1e1e1 100%, transparent 0);
27  background-size: 40px 1px , 1px 40px, 8px 8px;
28  background-position: center center;
29  box-sizing: border-box;
30  animation: bike 0.3s linear infinite;
31}
32
33.loader::before {
34  left: 25px;
35  top: 60px;
36}
37
38@keyframes bike {
39  0% {
40    transform: rotate(0deg);
41  }
42
43  100% {
44    transform: rotate(360deg);
45  }
46}