h6 {
    display: grid;
    grid-template-columns: minmax(50px, 1fr) auto minmax(50px, 1fr);
    align-items: center;
    text-align: center;
    gap: 40px;
    font-size: medium;
}

h6::before,
h6::after {
    content: "";
    border-top: 6px double;
}

@media (max-width: 400px) {
    h6 {
        font-size: 2.5rem;
    }
}