.card-header:first-child {
	border-radius: calc(.25rem - 1px) calc(.25rem - 1px) 0 0;
}
.card-header {
	position: relative;
	z-index: 2;
}
.card-header {
	background: #7f8c8d;
	 font-weight: bolder; 
	color: #fff;
	padding: .75rem 1.25rem;
	border-bottom: 0;
}