Separator Widget inserts a horizontal rule ( <hr> ) or a custom div ( <div class="my-separator"></div> ) in your widget area. Each widget can be set to one of those options.
No extra styling is added so you are free to style them however you want it.
Add your custom hr styling to your CSS or use .my-separator if you prefer that option.
Free and easy to use!
This plugin is available for download for your site.