details > summary {
	list-style: none;
}

details > summary::marker,
details > summary::-webkit-details-marker {
	display: none;
}

details > summary::before {
	content: "›";
	display: inline-block;
	margin-right: 0.5em;
	transition: transform 0.2s ease;
}

details[open] > summary::before {
	transform: rotate(90deg);
}