#primis {
    max-width: 690px;
    margin: 0 auto;
}
#primis h2 {
    font-size: 18px;
    line-height: 20px;
    font-weight: 700;
    color: #333;
    border-bottom: 2px solid #000;
    margin-top: 30px;
    margin-bottom: 15px;
    padding-bottom: 15px;
}