SOURCE

console 命令行工具 X clear

                    
>
console
<!DOCTYPE html>
<html lang="en">

<head>
	<meta charset="UTF-8" />
	<meta name="viewport" content="width=device-width, initial-scale=3.0" />
	<link rel="stylesheet" href="style.css" />
	<title>Kinetic Loader</title>
</head>

<body>
	<div class="kinetic"></div>

	<script src="script.js">
	</script>
</body>

</html>
* {
  box-sizing: border-box;
}

body {
  background-color: #2c3e50;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  overflow: hidden;
  margin: 0;
}

.kinetic {
  position: relative;
  height: 80px;
  width: 80px;
}

.kinetic::after,
.kinetic::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 0;
  border: 50px solid transparent;
  border-bottom-color: rgb(25, 228, 177);
  animation: rotateA 2s linear infinite 0.5s;
}

.kinetic::before {
  transform: rotate(90deg);
  animation: rotateB 2s linear infinite;
}

@keyframes rotateA {
  0%,
  25% {
    transform: rotate(0deg);
  }

  50%,
  75% {
    transform: rotate(180deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

@keyframes rotateB {
  0%,
  25% {
    transform: rotate(90deg);
  }

  50%,
  75% {
    transform: rotate(270deg);
  }

  100% {
    transform: rotate(450deg);
  }
}