html {
	background: gray;
}

body {
	color: white;
	margin: 0;
}

.main-content, .main-content img {
	text-align: center;
}

.main-content {
	padding-top: 175px;
}

#midiPlayer1,
#midiPlayer2,
#aol2, #aol3 {
	display: none;
}

#aol1, #aol2, #aol3 {
	width: 40%;
}