CSS Glowing Icons

Lien d’origine: https://codepen.io/Krishnaa_Gupta/pen/MWoRqmr

HTML:

<center><section class="glowing_icons">
<i class="fab fa-linkedin fa-4x" id="linkedin"></i>
<i class="fab fa-twitter fa-4x" id="twitter"></i>
<i class="fab fa-facebook-square fa-4x" id="facebook"></i>
<i class="fab fa-youtube-square fa-4x" id="youtube"></i>
<i class="fab fa-whatsapp fa-4x" id="whatsapp"></i>
<i class="fab fa-pinterest-square fa-4x" id="pinterest"></i>
<i class="fa fa-envelope-square fa-4x" id="mail"></i>
</section></center>

CSS:

.glowing_icons #linkedin,
.glowing_icons #twitter,
.glowing_icons #facebook, 
.glowing_icons #youtube,
.glowing_icons #whatsapp,
.glowing_icons #pinterest,
.glowing_icons #mail {
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: 10px;
animation: animate 3s linear infinite;
text-shadow: 0 0 50px #0072ff, 0 0 100px #0072ff, 0 0 150px #0072ff,
0 0 200px #0072ff;
}
.glowing_icons #twitter {
animation-delay: 0.3s;
}
.glowing_icons #facebook {
animation-delay: 0.7s;
}
.glowing_icons #github {
animation-delay: 0.1s;
}
@keyframes animate {
from {
filter: hue-rotate(0deg);
}
to {
filter: hue-rotate(360deg);
}
}