.nu-file-expanded {
		min-height: 15em;
		min-width: 40em;
		width: 60vw;
		height: 50vh;
		display: -webkit-flex;
		display: -ms-flexbox;
		display: flex;
		-webkit-flex-flow: column;
		-ms-flex-flow: column;
		flex-flow: column;
		position: relative;
}

.nu-file-error::before {
		position: absolute;
		top: 0;
		right: 0;
		bottom: 0;
		left: 0;
		color: #f00;
		background-color: #c8c8c8;
		content: '(error)';
		z-index: 1;
		display: -webkit-flex;
		display: -ms-flexbox;
		display: flex;
		-webkit-align-items: center;
		-ms-flex-align: center;
		align-items: center;
		-webkit-justify-content: center;
		-ms-flex-pack: center;
		justify-content: center;
}