This page is for demonstrating and experimenting with features that can be put to use on Wiki Program Pages. It is for anyone to use. The idea is that this is a playground where things can be tried out without worry.
<span class="wikicode">This is text</span>
Remember: You can see how to implement anything on this page by just looking at the wiki markup source and aping it.
Embedding YouTube videos into pages—such as the one below—is straightforward. Just use <span class="wikicode"><nowiki><embedvideo service="youtube">https://www.youtube.com/[rest of url here]</embedvideo></nowiki></span>