body,
h1, h2, h3, h4, h5, h6,
input,
textarea,
.page-title span,
.pingback a.url,
#site-title,
.entry-title {
font-family: "HelveticaNeue-Light", "Helvetica Neue Light", "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif;
font-weight: 300;
}
h3#comments-title,
h3#reply-title,
#access .menu,
#access div.menu ul,
#cancel-comment-reply-link,
.form-allowed-tags,
#site-info,
#wp-calendar,
.comment-meta,
.comment-body tr th,
.comment-body thead th,
.entry-content label,
.entry-content tr th,
.entry-content thead th,
.entry-meta,
.entry-utility,
#respond label,
.navigation,
.page-title,
.pingback p,
.reply,
.widget-title,
.wp-caption-text,
.home .hentry.format-aside:before,
.home .hentry.category-asides:before {
font-family: "Times New Roman", Times, serif;
letter-spacing: .2em;
}
input[type=submit] {
font-family: "Times New Roman", Times, serif;
}
Here’s the typography section of the CSS file. If you replace these fonts with your own you can paste that into the custom CSS input under Appearance -> Brunelleschi Settings.