html, body {
  margin: 0;
  width: 100%;
  height: 100%;
  display: flex;
  background-color: #e8e0cb;
}

.container {
  margin: auto;
  width: 200px;
  height: 200px;
  position: relative;
}

.container .circle {
  border-radius: 50%;
  box-sizing: border-box;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border: 2px solid #f47023;
}

.container .circle.item {
  animation: round 3s linear infinite;
}

.container .circle.item::after {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 13px;
  height: 13px;
  background-color: #f47023;
  border-radius: 50%;
}

.container .circle:nth-child(1) {
  width: 50px;
  height: 50px;
  background-color: #f47023;
}

.container .circle:nth-child(2) {
  width: 100px;
  height: 100px;
  background-color: transparent;
  animation-duration: 2s;
}

.container .circle:nth-child(3) {
  width: 140px;
  height: 140px;
  background-color: transparent;
  animation-duration: 2.5s;
}

.container .circle:nth-child(4) {
  width: 180px;
  height: 180px;
  background-color: transparent;
}

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