h1 {
	text-align: center;
}
h2 {
	text-align: center;
}
nav {
	text-align: center;
}
footer {
	text-align: center;
}
p {
	text-align: center;
}

Body {
	background-color: #A9A9A9;
	color: #FFFFFF;
	font-family: Times New Roman;
	margin: 10px;
}

<iframe.no-border {
	border: none;
}