Črke · Letters · 字母 ( v. 2.0)
On-line visual poem — an extension, i.e. an additional toolbar for the Firefox Internet browser. (updated, v 2.0)
Animated 3D alphabet is added to web pages. Letters respond to the typing. You can also move the letters across the web page.
The work is technically obsolete, it might be accessible with limited functionality or not at all.
Reason being the development of web technologies or changes in the APIs used.