style.css

.intro {
    padding-bottom: 50px;
    text-align: center;
}

.content-section-intro {
	text-align: center;
	background-color: gray;
	color: white;
	padding-bottom: 10px;
}

.content-a {
	padding: 50px 0;
    background-color: #f8f8f8;
}

.content-b {
    padding: 50px 0;
    border-top: 1px solid #e7e7e7;
    border-bottom: 1px solid #e7e7e7;
}

.learn-more {
    padding: 50px 0;
    background-color: gray;
    color: white;
}

.learn-more h2 {
	font-size: 3em;
}

.learn-more ul {
	margin-top: 10px;
}

.caption {
	text-align: center;
	font-style: italic;
	color: gray;
}