h1, h2, h3, h4 {
  font-family: Arial, sans-serif;
  font-weight: lighter;
  color: #252525;
}

h1 {
  margin-bottom: 10px;
}

h2, h3, h4 {
  margin: 15px 0;
}

h1 { font-size: 21px; }
h2 { font-size: 17px; }
h3 { font-size: 15px; }
h4 { font-size: 13px; }

#content .blocks h3 {
  margin: 0;
  padding: 10px 15px;
  border-bottom: 2px solid #c6c6c6;
}