<html>
<head>
<style>@keyframes telik{0%{box-shadow:0 5px 10px 2px #fff}to{box-shadow:0 5px 10px 3px #fff}}body{background:#000}.circle{position:absolute;left:400px;top:80px;border:1px solid #000;border-radius:100%;width:10px;height:10px}.telik{background:#fff;width:500;height:250;position:relative;margin:100px auto;border-radius:3px;animation:.01s linear 0s infinite alternate telik}</style>
</head>
<body>
<div class="telik">
<span class="circle"></span>
</div>
</body>
</html>
Простой
