HTML or DHTML is a collection
of technologies used together to create interactive and animated
web sites. Cascading
Style Sheets (CSS)
is a stylesheet language used to describe the presentation of
a document. When both are put together, so much can be designed.
the "Cruise Ship" link
below which is an Action/Strategic Game illustrating just one
of the many ways of using DHTML and CSS which is CROSS-PLATFORM.