This document is named iframe.html
The window below is actually an inbound frame embedded into this document.
What you see inside that frame is the source of the file iframesrc.html

Open iframesrc.html in a new window.

Here is how to put the iframesrc.html into this document:

<iframe src="iframesrc.html" width="250" height="200"
scrolling="auto" frameborder="2">
[Your user agent does not support frames or is currently configured
not to display frames. However, you may visit
<A href="iframesrc.html">the related document.</A>]
</iframe>