body, html {
	height: 100%;
	display: grid;
	background-image: url("night_bg.png");
	overflow-y: scroll;
	scrollbar-width: none;
}

h2, h3, h4 {
text-align: center;
}

p {
	text-indent: 20px;
	margin: 20px;
	line-height: .95;
	}

#frame {
	display: block;
	margin: auto;
}

.preview {
	display: block;
	margin: auto;
}