svg isn't going to be interactive.
are you testing your html5 in your browser? if so, are you opening the html file on your harddrive or on a server?
Hi, thanks for your reply.
The SVG idea was really to investigate further.
This is the thing. The preview seems to run on a server (127.0.0.1) and that works okay.
I've been opening the output file directly through the file system - is that the difference?
I'll try that now.
you're publishing an html file (along with a js and probably images) so yes, the html must be opened in a browser.
How else would you run an HTML document except in a browser?