* {
  font-family: sans-serif;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
span:nth-child(1){
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
  width: 60px;
  height: 60px;
  border: 6px solid #262626;
  border-radius: 50%;
  border-top: 6px solid transparent;
  animation: animate2 1s linear infinite;
}

span:nth-child(2){
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
  width: 100px;
  height: 100px;
  border: 6px solid #262626;
  border-radius: 50%;
  border-bottom: 6px solid transparent;
  animation: animate1 2s linear infinite;
}
span:nth-child(3){
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
  width: 20px;
  height: 20px;
  border: 6px solid #262626;
  border-radius: 50%;
  border-bottom: 6px solid transparent;
  animation: animate1 1s linear infinite;
}

@keyframes animate1 {
  0%{
    transform: translate(-50%,-50%) rotate(0deg);
  }
  100%{
    transform: translate(-50%,-50%) rotate(360deg);
  }
  
}
@keyframes animate2 {
  0%{
    transform: translate(-50%,-50%) rotate(0deg);
  }
  100%{
    transform: translate(-50%,-50%) rotate(-360deg);
  }
  
}