@import url(https://fonts.googleapis.com/css?family=Roboto:300);
html {
  box-sizing: border-box;
}

*, *:before, *:after {
  box-sizing: inherit;
}

body {
  background-image: linear-gradient(90deg, #ffeb3b 11%, #ffc107 100%);
  font-family: "Roboto", sans-serif;
}

h1 {
  text-align: center;
  font-weight: 300;
}

.circle {
  position: relative;
  width: 300px;
  height: 300px;
  border: 5px solid rgba(255, 109, 0, 0.8);
  margin: 30px auto;
  padding: 5px;
  border-radius: 50%;
}

.circle:hover .line {
  background: rgba(245, 245, 245, 0.4);
}

.line {
  position: absolute;
  transition: background 0.5s linear;
  width: 4px;
  height: 100%;
  background: rgba(245, 245, 245, 0);
  left: 50%;
  margin-left: -2px;
  top: 0;
  bottom: 0;
  transform-origin: 50% 50%;
}

.line:nth-child(1) {
  transform: rotate(0deg);
}

.line:nth-child(2) {
  transform: rotate(22.5deg);
}

.line:nth-child(3) {
  transform: rotate(45deg);
}

.line:nth-child(4) {
  transform: rotate(67.5deg);
}

.line:nth-child(5) {
  transform: rotate(90deg);
}

.line:nth-child(6) {
  transform: rotate(112.5deg);
}

.line:nth-child(7) {
  transform: rotate(135deg);
}

.line:nth-child(8) {
  transform: rotate(157.5deg);
}

.line:nth-child(9) {
  transform: rotate(180deg);
}

span {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #FF6D00;
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 100;
  margin-left: 0;
  -webkit-animation: moveme 5s infinite ease-in-out;
          animation: moveme 5s infinite ease-in-out;
}

.line:nth-child(1) span {
  -webkit-animation-delay: 2.1875s;
          animation-delay: 2.1875s;
}

.line:nth-child(2) span {
  -webkit-animation-delay: 1.875s;
          animation-delay: 1.875s;
}

.line:nth-child(3) span {
  -webkit-animation-delay: 1.5625s;
          animation-delay: 1.5625s;
}

.line:nth-child(4) span {
  -webkit-animation-delay: 1.25s;
          animation-delay: 1.25s;
}

.line:nth-child(5) span {
  -webkit-animation-delay: 0.9375s;
          animation-delay: 0.9375s;
}

.line:nth-child(6) span {
  -webkit-animation-delay: 0.625s;
          animation-delay: 0.625s;
}

.line:nth-child(7) span {
  -webkit-animation-delay: 0.3125s;
          animation-delay: 0.3125s;
}

@-webkit-keyframes moveme {
  0% {
    top: 0;
  }
  50% {
    top: 99%;
  }
  100% {
    top: 0;
  }
}

@keyframes moveme {
  0% {
    top: 0;
  }
  50% {
    top: 99%;
  }
  100% {
    top: 0;
  }
}