Widget:Iframe
This widget allows you to embed an iframe on your wiki page.
Hacked together by Michael
Using this widget
{{#Widget:Iframe|src=http://url.to/|width=|height=|style=}}
Default width is 320 and height is 240.
For example:
{{#Widget:Iframe|src=https://xpub.nl/|style=height:200px;float:right;}}
Copy to your site
To use this widget on your site, just install MediaWiki Widgets extension and copy full source code of this page to your wiki as Widget:Iframe article.