body, html {
	margin: 0;
	padding: 0;
	height: 100%;
	width: 100%;
	overflow: hidden;
}

body {
	display: flex;
	justify-content: center;
	align-items: center;
}

#fullscreen {
	position: absolute;
    right: 20px;
    top: 20px;
}

#fullscreen, #fullscreen button {
	display: flex;
	justify-content: center;
	align-items: center;
	width: 40px;
    height: 40px;
}

#fullscreen button:hover {
	cursor: pointer;
}

#fullscreen button img {
	width: 30px;
	height: 30px;
}