Add dl element to alignment list

[jwillmer]

the dl element is missing in this list:

.post-list .post, .pagination, .site-footer, .single-post .post-content > h1, .single-post .post-content > h2, .single-post .post-content > h3, .single-post .post-content > h4, .single-post .post-content > h5, .single-post .post-content > h6, .single-post .post-content > p, .single-post .post-content > ul, .single-post .post-content > ol, .single-post .post-content > blockquote, .single-post .post-content .single-post-header, .single-post .post-content > table, .single-post .post-content > figure, .read-next{
    width: 90%;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
    word-wrap: break-word;
}

[jwillmer]

done?

Saw it on #13 - thx!