<!doctype html>
<html>
<head>
<meta charset="utf-8" />
<style>
span {
display: block;
width: 100px;
height: 100px;
margin: 160px auto;
animation: ripple 0.6s linear infinite;
border-radius: 50px;
background-color: #FFF;
}
/* dalgalanma efekti */
@keyframes ripple {
0% {
box-shadow: 0 0 0 0 rgba(0, 128, 0, 0.1), 0 0 0 20px rgba(0, 128, 0, 0.1), 0 0 0 40px rgba(0, 128, 0, 0.1), 0 0 0 60px rgba(0, 128, 0, 0.1);
}
100% {
box-shadow: 0 0 0 20px rgba(0, 128, 0, 0.1), 0 0 0 40px rgba(0, 128, 0, 0.1), 0 0 0 60px rgba(0, 128, 0, 0.1), 0 0 0 80px rgba(0, 128, 0, 0);
}
}
</style>
</head>
<body>
<span></span>
</body>
</html>
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