<div class="gallery">
	<figure>
		<img src="https://images.unsplash.com/photo-1556150443-7254ffb98961?crop=entropy&cs=tinysrgb&fit=max&fm=jpg&ixid=MnwzMjM4NDZ8MHwxfHJhbmRvbXx8fHx8fHx8fDE2NzI2MTM3NDk&ixlib=rb-4.0.3&q=80&w=400" alt="A group of penguins walking in a single-file line on a rocky shore. " title="Penguin photo by Yomex Owo for Unsplash">
		<figcaption>Penguins on parade</figcaption>
	</figure>
	<figure>
		<img src="https://images.unsplash.com/photo-1579190519828-316f39307e61?crop=entropy&cs=tinysrgb&fit=max&fm=jpg&ixid=MnwzMjM4NDZ8MHwxfHJhbmRvbXx8fHx8fHx8fDE2NzI2MTM3NDk&ixlib=rb-4.0.3&q=80&w=400" alt="A group of penguins walking onshore from a body of water. " title="Penguin photo by Rebekah Blocker for Unsplash">
	</figure>
	<figure>
		<img src="https://images.unsplash.com/photo-1546200043-0461108b05b0?crop=entropy&cs=tinysrgb&fit=max&fm=jpg&ixid=MnwzMjM4NDZ8MHwxfHJhbmRvbXx8fHx8fHx8fDE2NzI2MTM4NTY&ixlib=rb-4.0.3&q=80&w=400" alt="Two puffins sitting in grass in front of water, facing each other. " title="Puffin photo by Jolan Wathelet for Unsplash">
		<figcaption>A pair of puffins</figcaption>
	</figure>
	<figure>
		<img src="https://images.unsplash.com/photo-1471277492184-078d3fe6b419?crop=entropy&cs=tinysrgb&fit=max&fm=jpg&ixid=MnwzMjM4NDZ8MHwxfHJhbmRvbXx8fHx8fHx8fDE2NzI2MTM5MDc&ixlib=rb-4.0.3&q=80&w=400" alt="A puffin standing on a rocky ledge over water. " title="Puffin photo by Jonatan Pie for Unsplash">
	</figure>
</div>

@import url("https://fonts.googleapis.com/css2?family=Lato&display=swap");

body {
	font-family: "Lato", sans-serif;
}

.gallery {
	display: grid;
	grid-gap: 1px;
	grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.gallery img {
	width: 100%;
	border-radius: 10px;
	height: 15rem;
}

figure {
	height: 15rem;
	border-radius: 10px;
}

figure:hover {
	transform: scale(1.1);
	box-shadow: 0px 10px 20px 2px rgba(0, 0, 0, 0.25);
	animation: gradient 5s ease infinite;
}

figcaption {
	padding: 0.2em;
	text-align: center;
}

@keyframes gradient {
	0% {
		background-position: 0% 50%;
		color: black;
	}

	50% {
		background-position: 100% 50%;
		color: black;
	}

	100% {
		background-position: 0% 50%;
		color: black;
	}
}

@supports (selector(:has(*))) {
	figure:has(figcaption) {
		border-radius: 10px;
		box-shadow: 0px 5px 10px 0px rgba(0, 0, 0, 0.5);
		background: linear-gradient(to right, #0e6655, #d0ece7);
		color: white;
		height: 18rem;
		background-size: 400% 400%;
	}
}

if (!CSS.supports("selector(:where())")) {
	const galleryFigures = document.querySelectorAll("figure");

	// loop over each HTML figure element to find if figcaption is present
	for (let figure of galleryFigures) {
		console.log(figure.children.length);
		if (figure.children.length === 2) {
			figure.style.height = "18rem";
			figure.style.borderRadius = "10px";
			figure.style.background = "linear-gradient(to right, #935116, #FAE5D3)";
			figure.style.color = "white";
			figure.style.backgroundSize = "400% 400%";
		}
	}
}