1.loader {
2  border: 4px solid rgba(0, 0, 0, .1);
3  border-left-color: transparent;
4  border-radius: 50%;
5}
6
7.loader {
8  border: 4px solid rgba(0, 0, 0, .1);
9  border-left-color: transparent;
10  width: 36px;
11  height: 36px;
12}
13
14.loader {
15  border: 4px solid rgba(0, 0, 0, .1);
16  border-left-color: transparent;
17  width: 36px;
18  height: 36px;
19  animation: spin89345 1s linear infinite;
20}
21
22@keyframes spin89345 {
23  0% {
24    transform: rotate(0deg);
25  }
26
27  100% {
28    transform: rotate(360deg);
29  }
30}