body         { font-family: Arial }
h1, h2, h3, h4, h5, h6 { margin:0; padding:0;}
h1 {font-size: 20; font-weight:bold}
h2 {font-size: 18; font-weight:bold}
h3 {font-size: 16; font-weight:bold}
h4 {font-size: 14; font-weight:bold}
h5 {font-size: 12; font-weight:bold}
h6 {font-size: 10; font-weight:bold}