@keyframes fireball {
	0% {
		transform: rotate(0);
	}
	100% {
		transform: rotate(360deg);
	}
}

body {
	background-color: #000000;
	background-image: url('images/background.png');
	background-position: 0 center;
	background-repeat: repeat-x;
	box-sizing: border-box;
	height: 100%;
	margin: 0;
	overflow: hidden;
	padding: 0;
	width: 100%;
}

.fireball {
	animation-delay: 0s;
	animation-duration: 1s;
	animation-iteration-count: infinite;
	animation-name: fireball;
	animation-timing-function: linear;
	background-image: url('images/fireball.gif');
	background-repeat: no-repeat;
	background-size: 100% 100%;
}

h1 {
	align-items: center;
	display: flex;
	font-family: sans-serif;
	justify-content: center;
	height: 100%;
	margin: 0;
}

html {
	height: 100%;
	width: 100%;
}

.tube {
	background-repeat: no-repeat, repeat-y;
}