<div id="loader"></div>
<h4>Loader #7</h4> 

body {
  background: rgb(107, 216, 97); 
}
h4 {
  position: absolute;
  bottom: 20px;
  left: 20px;
  margin: 0;
  font-weight: 200;
  opacity: 1;
	font-family: sans-serif;
  color: #fff;
}
#loader {
  animation: animate 1.5s linear infinite;
  clip: rect(0, 80px, 80px, 40px); 
  height: 80px;
  width: 80px;
  position: absolute;
  left: calc(50% - 40px);
  top: calc(50% - 40px);
}
@keyframes animate {
  0% { 
    transform: rotate(0deg)
  }
  100% { 
    transform: rotate(220deg)
  }
}
#loader:after {
  animation: animate2 1.5s ease-in-out infinite;
  clip: rect(0, 80px, 80px, 40px);
  content:'';
  border-radius: 50%; 
  height: 80px;
  width: 80px;
  position: absolute; 
} 
@keyframes animate2 {
  0% {
    box-shadow: inset #fff 0 0 0 17px;
    transform: rotate(-140deg);
  }
  50% {
    box-shadow: inset #fff 0 0 0 2px;
  }
  100% {
    box-shadow: inset #fff 0 0 0 17px;
    transform: rotate(140deg);
  }
}