How do I add a horizontal rule or divider into my campaign?

The horizontal rule <HR>, also known as a line divider, is used to divide content areas within an email. These HTML horizontal rules can be used to divide your email content subjects, products, navigational menus or whatever you'd like. They provide a great way to add color to your pages without using images and will enable you to improve the appearance of your web pages. Caution: This requires advanced knowledge