div.col-onethird {
    float: left;
    margin-left: 15px;
    text-align: center;
    width: 30%;
}

div.section {
    clear: both;
    margin-bottom: 20px;
    min-height: 60px;
}

div.section-half {
    float: left;
    margin-right: 20px;
    width: 46%;
}