style.css

.row > div {
  padding-top: 36px;
}

.intro h1 {
  margin-top: 0;
}

.separator {
  margin-top: 36px;
  padding: 18px 36px;
  background: #eee;
  border-radius: 6px;
}

.separator h2 {
  margin: 0;
  font-size: 24px;
  font-weight: 300;
}

.match-twitter-button {
  font-size: 13px !important;
  line-height: 26px !important;
  padding: 0 12px !important;
  vertical-align: top !important;
  font-weight: bold;
  margin-right: 1em;
}

.center-icon {
  padding: 0 25%;
  text-align: center;
}

.row.principles > div {
  padding-top: 18px;
}

.row.principles h3 {
  color: #777;
  margin-top: 12px;
}

.testimonials {
  padding: 10px 20px;
  margin: 24px 0 16px -20px;
  border: 1px solid #e8e8e8;
  border-radius: 5px;
}

.testimonials h2 {
  margin: 9px 0 0 0;
  font-size: 12px;
  font-weight: 700;
  color: #959595;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.testimonials .row > div {
  padding-top: 18px;
}

.row > div > h3:first-child {
  margin-top: 0;
}

.take-my-money {
  text-align: center;
}

.take-my-money .btn {
  text-transform: uppercase;
  letter-spacing: 1px;
}

body > footer {
  border-top: 1px solid #e8e8e8;
  margin-top: 24px;
  padding: 24px 0;
}

body > footer p {
  font-size: 12px;
  text-align: center;
  color: #777;
}

/* On small screens, the long title "Designing Data-Intensive Apps" doesn't fit
 * on one line -- allow it to wrap gracefully */
.navbar-header .navbar-brand {
  float: none;
  display: block;
  height: auto;
}