<div class="progress"></div>

.progress {
  width:60px;
  height:60px;
  border-radius: 50%;
  -webkit-mask:linear-gradient(0deg,#000 55%,#0000 0) bottom/100% 18.18%;
  background:
   linear-gradient(#f03355 0 0) bottom/100% 0% no-repeat
   #ddd;
  animation:p 2s infinite steps(7);
}
@keyframes p {
    100% {background-size:100% 115%}
}