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path: root/src/web/component/navigation/index.css
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#toggle {
	--radius-open: 200px;

	position: absolute;
	right: 10px;
	bottom: 10px;
	width: 45px;
	height: 45px;
	border-radius: 100%;
	background: red;
	z-index: 500;
	cursor: pointer;
	text-align: center;
	align-content: center;
	transition:
		border-radius 0.1s ease,
		right 0.1s ease,
		bottom 0.1s ease,
		width 0.1s ease,
		height 0.1s ease;

	.bi {
		baseline-shift: -2px;
	}

	.items {
		position: relative;
		top: 0px;
		left: 0px;
		right: 0px;
		bottom: 0px;
	}

	.item {
		display: none;
		width: 45px;
		height: 45px;
		border-radius: 100%;
		background: blue;
		position: absolute;
		right: calc(cos(18deg * var(--index)) * var(--radius-open));
		bottom: calc(sin(18deg * var(--index)) * var(--radius-open));
		font-size: calc(var(--index) * 1px);
	}

	.item {
		--index: sibling-index();
	}
}

#toggle.open {
	width: var(--radius-open);
	height: var(--radius-open);
	bottom: 0px;
	right: 0px;
	border-radius: 0px;
	border-top-left-radius: 250px;

	.bi {
		display: none;
	}

	.item {
		display: block;
	}
}