body {
  font-size: 16px;
  color: #222;
  background-color: #fff;
  font-family: sans-serif;
}


.navbar-brand h1 {
  color: #222;
  font-size: 1.5em;
  font-weight: bold;
  margin-top: 0;
  margin-bottom: 0;
}

#main-content {
	margin-top: 50px;
}

#item-text {
	background-color: #AAA;
	color: #222;
	line-height: 1.5em;
}

#nav-list a {
	text-align: center;
}
body {
  font-size: 16px;
  color: #222;
  background-color: #fff;
  font-family: sans-serif;
}


.navbar-brand h1 {
  color: #222;
  font-size: 1.5em;
  font-weight: bold;
  margin-top: 0;
  margin-bottom: 0;
}

#main-content {
	margin-top: 50px;
}

#main-content h2, #main-content h3 {
	font-weight: bold;
}

#item-text {
	background-color: #AAA;
	color: #222;
	line-height: 1.5em;
}

#nav-list a {
	text-align: center;
}
Add bold font-height for headings.
Add bold font-height for headings.
