.progress-bar {
  position: relative;
  height: 150px;
  width: 150px;
  margin:50px auto 0;
}

.progress-bar div {
  position: absolute;
  height: 150px;
  width: 150px;
  border-radius: 50%;
}

.progress-bar div span {
	background-color: white;
	border-radius: 50%;
	height: 140px;
	left: 5px;
	line-height: 150px;
	position: absolute;
	text-align: center;
	top: 5px;
	width: 140px;
}

.progress-bar .background { background-color: #b3cef6; }

.progress-bar .rotate {
  clip: rect(0 100px 200px 0);
  background-color: #4b86db;
}

.progress-bar .left {
  clip: rect(0 100px 200px 0);
  opacity: 1;
  background-color: #b3cef6;
}

.progress-bar .right {
  clip: rect(0 100px 200px 0);
  transform: rotate(180deg);
  opacity: 0;
  background-color: #4b86db;
}
 @keyframes 
toggle {  0% {
 opacity: 0;
}
 100% {
 opacity: 1;
}
}