Algodoo

This scene was made by Algodoo v1.7.3.
Just an example of markup.

For checking the appearance. http://www.algodoo.com/forum/viewtopic.php?f=24&t=2279#p28059

Edit (at 18 June 2010):
We can use ' (single quote) instead of \" (double quote with backslash escape).
i.e.
<span background=\"black\" ...
can be written as
<span background='black' ...