HTML
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>CSS glowing icons</title>
<link rel="stylesheet" href="style.css">
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
</head>
<body>
<div class="container">
<i class="fa fa-apple" id="apple"></i>
<i class="fa fa-twitter" id="twitter"></i>
<i class="fa fa-github-square github" id="github"></i>
<i class="fa fa-facebook-square" id="facebook"></i>
</div>
</body>
</html>
CSS
* {
margin: 0;
padding: 0;
}
body {
height: 100vh;
width: 100vw;
background: #18191f;
}
.container {
display: flex;
justify-content: center;
align-items: center;
height: 100vh;
width: 100vw;
}
#apple,
#twitter,
#github,
#facebook {
font-size: 8em;
background-color: #18191f;
color: #fff;
box-shadow: 2px 2px 2px #00000080, 10px 1px 12px #00000080,
2px 2px 10px #00000080, 2px 2px 3px #00000080, inset 2px 2px 10px #00000080,
inset 2px 2px 10px #00000080, inset 2px 2px 10px #00000080,
inset 2px 2px 10px #00000080;
border-radius: 29px;
padding: 11px 19px;
margin: 0 40px;
animation: animate 3s linear infinite;
text-shadow: 0 0 50px #0072ff, 0 0 100px #0072ff, 0 0 150px #0072ff,
0 0 200px #0072ff;
}
#twitter {
animation-delay: 0.3s;
}
#facebook {
animation-delay: 0.7s;
}
#github {
animation-delay: 0.1s;
}
@keyframes animate {
from {
filter: hue-rotate(0deg);
}
to {
filter: hue-rotate(360deg);
}
}
