This page adjusts the height of its iframe to fit the iframe's content. The workings are a bit complicated but if you want to try it:

• Create a page with an iframe containing Spinitron content, for example, like the one below.
• Give the iframe an id, e.g. the one here has id="spinFrame".
• Copy-paste the javascript from spincontainer.html (the page you are now reading) into yours.
• Customize the javascript, carefully following the comments in spincontainer.html.
• Put the file spinadjuster.html in the same directory on your web server as the file with the iframe.

The comments in spincontainer.html and spinadjuster.html explain how the technique works.