html { position: fixed }

html,
body,
canvas,
#game {
	margin: 0;
	padding: 0;
	height: 100%;
	width: 100%;
	background-color: #000;
}

#portrait-error-message {
	color: white;
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
	position: absolute;
	top: 0;
	bottom: 0;
	left: 0;
	right: 0;
	pointer-events: none;
	font-size: 50px;
	visibility: hidden;
}

#portrait-error-message p {
	font-family: 'Open Sans', 'Ubuntu', 'Arial', sans-serif;
	font-weight: bold;
	font-size: 10vw;
	margin: 10%;
	padding: 0;
	text-align: center;
}

#fg {
	position: absolute;
	top: 0;
	bottom: 0;
	left: 0;
	right: 0;
	background-color: rgba(255, 255, 255, 0.4);
}

#fg img {
	margin: auto;
}

.visible {
	display: flex;
}

.invisible {
	display: none;
}