This is a web page with built-in illustrations added post-hoc for explaining Bug 577418 - [HTML5] Parser does not return to SVG namespace after encountering foreignObject with html and body tags.

Image of page correctly rendered in FireFox 3.6.3 on Xubuntu 10.04 Image of page correctly rendered in FireFox 4 beta 1 on Wndows XP
On the above left is the page as correctly rendered in FireFox 3.6.3 on Xubuntu 10.04 and 3.6.6 on Windows XP with html5.enable set to true. On the above right is the page as rendered in Mozilla Developer Preview 3.7 alpha 5 and FireFox 4 beta 1 on Windows XP.

Optical image depth Sunshine

This is paragraph text in an HTML foreignObject. To the right should be a circle.

This is HTML text in HTML and should be styled the same as the text above the SVG.