1.loader {
2  width: 100px;
3  height: 100px;
4  background-color: orange;
5  border-radius: 50%;
6  box-shadow: -15px -15px 15px #ff6600, 15px -15px 15px #ff9100, 15px 15px 15px #ff5500, -15px 15px 15px #ffa600, -15px 0 15px #ff6600, 15px 0 15px #ffcc00;
7  animation: rotate 1s infinite;
8  transform: rotate(0) scale(0.8);
9}
10
11@keyframes rotate {
12  0% {
13    transform: rotate(360deg) scale(0.8);
14  }
15
16  50% {
17    transform: rotate(0) scale(1.2);
18  }
19}