div.download-links {
	text-align:center;
	& a {
		display:inline-block;
		width: 15vw;
		height: 21vw;
		background-size:contain;
		background-position: center;
		background-repeat: no-repeat;
		margin: 5vw 3vw;
		border-radius: 2vw;
		&.pdf  {background-image:url(/img/pdf-dl-link.webp);}
		&.epub {background-image:url(/img/epub-dl-link.webp);}
	}
}