#main-heading {
  color: #b30000;     
  text-align: center;
  margin-bottom: 0.5em;
}

.intro-text {
  background-color: #f9f9f9;
  padding: 8px;
  border-left: 4px solid #b30000;
}

.highlight {
  background-color: #ffc; 
  font-weight: bold;
  padding: 6px;
}

h3 {
  color: #336699;
  font-style: italic;
}