CSS code confirmation

Can the below bold CSS please be confirmed as correct?

@media (max-width: 600px) {

body { font-size: 16px; }

/* structure */

.wrapper.section { padding: 25px 0; }

.post-header,
.single .post-content,
.post-excerpt,
.content .comments,
div#disqus_thread,
.comment-respond,
.post-quote,
.post-link { padding: 7.5% 6%; }