h1 {text-align:center;font-style:italic;color:blue;font-size:160%}
  h2 {text-align:left;font-style:italic;color:blue;font-size:80%}
  h3 {text-align:left;font-style:italic;color:blue;font-size:60%}
  h4 {text-align:left;font-style:italic;color:blue;font-size:100%}
  p.centre {text-align:center;font-family:verdana;font-size:80%;color:green}
  p.main {text-align:justify;}