Rules, essentially, are straight lines that divide a page, like rulers. They help break down content, making it easier to digest when there's a lot of information on a page.
1.
Once you have logged in, navigate to the page where you intend to add a rule to.
2.
In the top admin bar, click on 'Edit Page'.
3.
Once in edit mode, scroll to the bottom of the content and click 'Rule'.
4.
There are no specific settings for adding a rule. Therefore, to add one, simply click the save button.
5.
A rule will then be added to your page. You'll then have the abillity to click and drag the blue bar to your preferred location.
6.
To publish the changes after you have finished editing, click the 'Approve' button at the top of your page.