div.rails { margin-bottom:2em;}
div.rails div {height:150px; width: 100%; overflow: hidden; background-image: url(rails.jpg); background-repeat: no-repeat; background-position: center;}

div.three_columns {width:30%; float:left; margin-right:3%; font-size:85%; padding-bottom:3em;}
div.underline {border-bottom: 1px solid #CCCCCC;}