.neon {
animation: flicker 2.5s infinite alternate;
color: #fff;
}
h1 {
font-size: 4.2rem;
}
/* Flickering animation */
@keyframes flicker {
0%, 18%, 22%, 25%, 53%, 57%, 100% {
text-shadow:
0 0 4px #F99494,
0 0 11px #FF5A5A,
0 0 19px #FF5A5A,
0 0 40px #BD3737,
0 0 80px #BD3737,
0 0 90px #BD3737,
0 0 100px #812424,
0 0 150px #812424;
}
20%, 24%, 55% {
text-shadow: none;
}
}