Radiant Gradient `hr`

I discovered a website called Very Good Components that features a design gallery focusing on individual components rather than entire websites. They offer configurable code for these components. Check out the Glowing Gradient Divider. I recreated it as an for fun, and to make it highly configurable, I used my slideVars library. Recently, I updated slideVars to version 1.5.0 to list --custom-properties in the order they appear in your CSS.