.yourElement {
/* offset-x | offset-y | blur-radius | spread-radius | color */
-webkit-box-shadow: -2px -1px 15px 7px rgba(0,0,0,0.5);
-moz-box-shadow: -3px -2px 30px 14px rgba(0,0,0,0.425);
box-shadow: -4px -3px 45px 21px rgba(0,0,0,0.35);
}
.wrapper{
width: 100%;
background: #fff;
border-radius: 5px;
animation: blink 1s infinite alternate;
}
@keyframes blink {
100% {
box-shadow: 0 0 10px rgb(0, 195, 255), 0 0 10px rgb(211, 243, 31), 0 0 20px rgb(230, 30, 30), 0 0 40px #346974,
0 0 70px #7eff05, 0 0 80px #d408a1;
}
}