Use the More block to shorten your blog entries so that only the first part of a post is displayed. This guide will show you how to use the More block to display just a portion of the post followed by a “read more” link.
In this guide
The More block can be used to keep your blog posts concise. It displays only the initial part of your post content in places where an excerpt is more appropriate than the full post content. This can include the homepage, archive pages, and subscriber emails.
This is an example of what the More block could look like after you have customized it and published the post. The final design will depend on your site’s theme: