This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

HTML5 Details Polyfill


Adds fallback support for the HTML5 <details> and <summary> elements in browsers that don’t support them using Mathias Bynens’ <details>/<summary> jQuery plugin.

Once the plugin is activated on your site, the following HTML should work in all modern browsers, even if they don’t natively support the <details> and <summary> elements:

  <summary>Click for more info...</summary>
  This is where you'd add the additional content that won't be seen until the "summary" is clicked.


Extract the zip file and drop the contents in the wp-content/plugins/ directory of your WordPress installation and then activate the plugin from the “Plugins” page.


Works for me

WordPress displays a warning that this plugin hasn’t been tested with recent WordPress versions, but it works fine for me (Firefox 58, IE 11).

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Contributors & Developers

“HTML5 Details Polyfill” is open source software. The following people have contributed to this plugin.




  • First public release!