h1{ font-family:arial,sans-serif; font-weight:normal; font-size:25px; margin:0; }
h2{ font-family:arial,sans-serif; font-weight:normal; font-size:22px; margin:0; }
h3{ font-family:arial,sans-serif; font-weight:bold; font-size:18px; }
h4{ font-family:arial,sans-serif; font-size:14px; }