.grid-container {
	display: grid;
	max-width: 850px;
	grid-template-columns: auto auto auto;
	grid-gap: 1vw;
}

@media (max-width: 700px) {
	.grid-container {
	grid-template-columns: auto;
	}
}

@media (min-width:  701px) {
	.grid-container img {
		max-width: 100%;
	}
}
.img-colver-logo {
	background-image: url(/img/article/003/COLVERLOGObk.png);
	background-size: 360px 180px;
	background-position: center;
	background-repeat: no-repeat;
	max-width: 850px;
	aspect-ratio:  2/1;
}
@media (prefers-color-scheme: dark) {
	.img-colver-logo {
	background-image: url(/img/article/003/COLVERLOGOwt.png);
	}
}

iframe {
	max-width: 850px;
}


span {
	text-decoration: underline;
}
span:hover {
	font-style: italic;
	cursor: help;
}

.img-extra-1, .img-extra-2 , .img-extra-3 {
	display: none;
	position: fixed;
	bottom: 3vw;
	left: 1vw;
	width: 28vw;
	z-index: 90;
}
span.extra-1:hover .img-extra-1 {
	display: block;
}
span.extra-2:hover .img-extra-2 {
	display: block;
}
span.extra-3:hover .img-extra-3 {
	display: block;
}