What you need to create a SMIL document is... a simple text editor!
We strongly recommend using VIM because of its capability in syntax
highlighting. All the sources you will see in this tutorial were powered by
VIM.
SMIL is XML-based and is very similar with HTML and this makes the
language easy to read and understand. There are however differences beetween
SMIL and HTML
SMIL is case-sensitive. All tags must be written in lower case.
SMIL is XML-based. Tags have to be ended.