How do I insert/edit a horizontal rule/divider line in the HTML Editor?

DESCRIPTION

Divider lines can enhance the design of your email by breaking up sections of text. This can fit with your brand aesthetics or make your content easier to read. 

HOW-TO

1. From the editor toolbar you have two rule options: Horizontal Rule and Horizontal Rule Editor.  
2. Select the placement in your content you want to add your horizontal rule.
3. Select the "Horizontal Rule" button. This button inserts a default grey line.  
4. To edit your line, choose the "Horizontal Rule Editor" button. This allows you to customize the color, width, length and alignment of the rule.
5. Click "Ok".