H1 { font-size: small; color: black }
H2 { font-size: medium; color: black; text-indent: 50px }
H3 { font-size: large; color: blue; text-indent: 200px }
H4 { font-size: small; color: green; background-color: #F00}
H5 { font-size: small; color: green; background-color: #00CC00}
H6 { font-size: large; color: blue; text-indent: 160px }

a:visited {color: #66FF00; text-decoration: none}
a:visited:hover {color: #66FF00; background-color: #66FF00; text-decoration: none }
a:link:hover {color: #FF0000; background-color: #FFFFFF; text-decoration: none }