.box h2 {
    text-align: center;
    font-weight: 700;
    font-size: 1.25em;
    letter-spacing: 1px;
}

.box h2::before,
.box h2::after {
    content: '';
    display: block;
    max-width: 400px;
    margin: 20px auto;
    border-top: 1px solid #999;
}