1.loader {
2  width: 50px;
3  height: 50px;
4  border: 7px double;
5  border-color: #43cec7 transparent;
6  border-radius: 50%;
7  display: flex;
8  justify-content: center;
9  align-items: center;
10  animation: spin13213 2s linear infinite;
11}
12
13.loader div {
14  width: 50%;
15  height: 50%;
16  background-color: #43cec7;
17  border-radius: 50%;
18}
19
20@keyframes spin13213 {
21  to {
22    transform: rotate(360deg);
23  }
24}