body, html {
	padding: 0 !important;
	margin: 0 !important;
	overflow: hidden;
}
svg#window {
	width: auto;
	height: auto;
	max-width: 100vw;
	max-height: 100vh;
	font-family:'Segoe UI', Tahoma, Geneva, Verdana, sans-serif
}
svg#window.preview {
	background-image: url('data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 40 40"%3E%3Crect width="40" height="40" fill="lightgrey"/%3E%3Cg fill="gainsboro"%3E%3Crect width="20" height="20"/%3E%3Crect x="20" y="20" width="20" height="20"/%3E%3C/g%3E%3C/svg%3E');
	background-size: 20px 20px;
	background-repeat: repeat;
}