div.pretty_square
{
    margin:0;
    padding:0;
    width:688px;
}
.third_column
{
    
    border-right:1px dashed #ccc;
    float:left;
    margin:0;
    padding:0 20px;
    width:185px;
}
.third_column h3 {text-align:center;margin-bottom:0;}
.third_column h4{color:#277bc0;text-align:center;margin:0;border-bottom:1px solid #ccc;}
.third_column:hover
{
    background-color:#e8f3fb;
}
.first
{
    margin-left:10px;
}
.last
{
    border-right:none;
    padding-right:10px;
    margin-right:0;
}
p.numbered
{
    margin-top:0;
    line-height:1.4em;
}
span.number
{
    color:#ccc;
    font: italic 3em Georgia, Times, serif;
    margin-right:.1em;
}

/*
688 - (20-10-1 - 20-10-1 - 10) = 616
let's say 615
616/3 = 205
*/