That’s odd, did you just change the layout? My screenshot shows correct?
Anyhow, you would want this CSS:
.recent-post .blog-item-details span:nth-child(2) {
display: none;
}
.recent-post .blog-item-details {
font-size: 0;
}
.recent-post .blog-item-details span.author {
font-size: 14px;
}