ten:0.5};
		transition: .2s ease-out;
	}

	.btn.error, .btn-flat.error, .btn-large.error {
		transition: .2s ease-out;
	}
	.btn.error:hover, .btn-flat.error:hover, .btn-large.error:hover, .btn-floating.error:hover {
		background-color: ${errorColor | lighten:1};
		transition: .2s ease-out;
	}
	.btn.error:focus, .btn-flat.error:focus, .btn-large.error:focus, .btn-floating.error:focus {
		background-color: ${errorColor | lighten:0.5};
		transition: .2s ease-out;
	}
		
	/* checkbox */
	[type="checkbox"]:checke