SOURCE

<div class="bg"></div>
<div class="dot"></div>
<div class="line-h"></div><div class="line-v"></div>

body {
  margin: 0;
  padding: 0
}
.line-h{
  width:1px;
  height:240px;
  position:absolute;
  left:115px;
  background:#000;
}
.line-v{
  height:1px;
  width:240px;
  position:absolute;
  top:115px;
  background:#000;
}
.bg {
  position: absolute;
  left: 5px;
  top: 5px;
  width: 220px;
  height: 220px;
  border: 1px solid green;
  border-radius: 50%;
}

.dot {
  width: 10px;
  height: 10px;
  background: red;
  border-radius: 50%;
  position: absolute;
  left: 32px;
  top: 32px;
  animation: round 5s linear infinite;
  transform-origin: 83px 83px;
}

@keyframes round {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}