A sitepen article by Dojo Toolkit contributor Sam Foster, Dynamic Stylesheets, Part 1, links to a demo of dojox.html.style, which, as Sam says, "give you the ability to query the stylesheets collection in a document, add and remove rules, and dynamically create new sheets." The article is brilliant, but it is so old that the source file for Dojo that the demo includes has already been removed. This Git project has been created to resurrect the demo.

Version 1.13.0 of Dojo. The file index.html uses Google's API CDN to source this.

Clone this repository. Browse demo. Open the browser's developer tools. Play with the reset and present buttons and the "nubbin" (small, blue, inverted pyramid) to adjust the relative sizes of the pink and blue table (built using <div>s) and watch the style of the <div> element with id "dv1" change as you make the adjustments. Add rows to the table by pressing the "+" button to verify that the new row is using the same styles as the first row.

This demo of dynamic stylesheets is mainly for just that: a demo. However, the code is there to be copied and used if someone finds it useful.

• It would be nice to have various versions of this demo for newer libraries. Version 1.13.0 of Dojo might seem to be old.

• The capability of saving the modified styles in a CSS file on a website's backend would an interesting feature.