.product-specification .nav-tabs {
	display: flex;
    height: 300px;
    flex-wrap: wrap;
    flex-direction: column;
	position: relative;
	align-items: flex-start;
	margin-top: 2rem;
}

.product-specification .nav-tabs li:first-of-type {
	position: absolute;
	top: -2rem;
	left: 0;
}