A Pop-Up Window Example
Note that there are typically no menu options.
I usually allow scroll bars and I allow the pop-up window to be resized, in case your default font means that the text would otherwise not fit (note that scrollbars are usually hidden if the text fits).
There is usually no way of navigating back to the calling page from my pop-ups, e.g. no <Back link.
The window is simply closed to return to the main page.