This is a good question, I don#t understand the question at all, but i´m interested in an answer, too.
usually i do watermarks in html for websites like this: in the body tag:
<body background="vlclogo.gif" bg properties="fixed">
...with vlclogo= the path to the gif
but i think that wasn´t your question
Do you mean, that you want the vlc player to stay fixed in the background?
I think it won´t work, but maybe anyone knows it better?
Tell me more about.
To handle the volume there is a javascript function: set_volume(vol) , and: get_volume(voll) but until now, i have not get out to build a display of the current volume in my html webpage.
If someone knows more, please post it