Works best when each of your posts contains an image in the body of the post. If your post doesn't contain an image then the title will be centered within the post block.

The title of the post can be shown under the image always as in the first screenshot, or shown in an overlay when the cursor hovers over the posts as seen in screenshot 2, 3 and 4.

The grid can display 2, 3, 4 or 5 posts per row.