From 2007.igem.org

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h1,h2,h3,h4,h5,h6{
font-family:"Trebuchet MS";
}

h2{
border-left:10px solid #800000;
border-bottom:0px;
background: #e9967a;
padding:5px 10px;
margin-top:20px;
}

h3{
border-bottom:1px dotted #888888;
border-left:10px solid #e9967a;
padding:3px 10px;
margin-top:15px;
}

a:visited{
color:#0000ff:
}