.site-title {
    margin: 0;
    text-align: center;
}

.site-title__main,
.site-title__sub {
    display: block;
}

.site-title__main {
    font-size: 1em;
}

.site-title__sub {
    margin-top: .18em;
    font-size: .72em;
    font-weight: 400;
    letter-spacing: .04em;
}