A CodePen by Thibaut Courouble. Sliding Tags - By [CSSFlow](http://www.cssflow.com): free UI elements and widgets coded with HTML5, CSS3, and Sass.  

View the original article and download the Sass/SCSS source at:  
[cssflow.com/snippets/sliding-tags](http://www.cssflow.com/snippets/sliding-tags)

Tested in Firefox 4, Safari 4, Chrome 13, Opera 10, IE 8 (and newer).