XUL Tip - Wrapping Boxes

In HTML you can use a DIV as a container and when the DIV changes size, the contents will wrap or adjust the layout. This does not happen with XUL BOX (or HBOX and VBOX) by default. However, you can easily add this capability with a style change. Make the BOX style="display: block" and the wrapping behavior will occur when the box is resized:

If you put IMAGE in the contents, you should probably add align="start" attribute to the box. This keeps the image from stretching inside the box.

This question keeps popping up on IRC, so I added a code snippet to MDC. Hopefully, it will reduce the number of times Mook, Mossop and Neil have to answer the question. (At least they have something to point to now)