div.card-body a.btn.btn-primary {
	animation: calltoaction ease-in-out  2s infinite;
}

@keyframes calltoaction {
	0%   {box-shadow: 0px 0px 0px 0px #0d6dfd3b;}
	50%  {box-shadow: 0px 0px 6px 6px #0d6dfd53;}
	100% {box-shadow: 0px 0px 0px 0px #0d6dfd3b;}
}