Horizontal Rule

Define <hr> incase tag is used in content. Define the style for a site - keep it consistent (no dotted lines and straight lines on same site, or thoughtfully)

Define right and wrong use cases.

Use of Horizontal bars + Call-outs on same page

Good/Bad examples

Don't use them in conjunction with a bunch of other elements - headers, photos, etc

Basic usage

HTML

<hr>

MARKDOWN

---

Properties

Using different kinds