.option_grid {
    margin-left: auto;
    margin-right: auto;
}

.option_grid tbody tr td {
    text-align: center;
    padding-top: 5px;
	padding-bottom: 10px;
}

.option_grid tbody tr th {
    border-bottom:1px solid #b0b0b0;
    text-align: left;
    font-size: 125%;
}