.htk-spinner {
	width: 1.8em;
	height: 1.8em;
	position: relative;
	display: inline-block;

	& > .spinner {
		left: 0;
		position: absolute;
		width: inherit;
		height: inherit;
		box-sizing: border-box;
		border-radius: 50%;
		border: 2px solid transparent;
		border-top-color: #666;
		border-left-color: #666;
		animation: spinner 1s linear infinite;
		-webkit-animation: spinner 1s linear infinite;
	}
	&.dark > .spinner {
		border-top-color: white;
		border-left-color: white;
	}
}
@keyframes spinner {
	to {transform: rotate(360deg);}
}
@-webkit-keyframes spinner {
	to {-webkit-transform: rotate(360deg);}
}