body { font-family: Tahoma, Verdana; font-size: 12px;}
h1 { font-size: 20px; font-weight: normal; }
h2 { font-size: 18px; font-weight: normal; margin-top: 15px; margin-bottom: 5px;  }
h3 { font-size: 16px; font-weight: normal; }
h4 { font-size: 16px; margin-top: 5px; margin-bottom: 5px; }