#Form_Form {
    width: 50%;
}

div.field {
    display:table-row;
    padding:0 0 20px 0;
}
form label.left {
    display: table-cell;
    width:30%;
    min-width:120px;
    float:left;
    vertical-align: top;
}
#Form_Form .middleColumn {
    display:table-cell;
    width:70%;
}