:root {
	border-top: none;
}

.hidden {
	display: none;
}

section {
	margin: 1em;
}

.loader {
	width: 48px;
	height: 48px;
	border: 5px solid #FFF;
	border-bottom-color: transparent;
	border-radius: 50%;
	display: inline-block;
	box-sizing: border-box;
	animation: rotation 1s linear infinite;
}

@keyframes rotation {
	0% {
		transform: rotate(0deg);
	}
	100% {
		transform: rotate(360deg);
	}
}