Navigation Button mouseover code for HTML page

On these codes below you can see the Navigation Button mouseover code for the Home button, but what do you use for an HTML page?

For your Home or Index nav button you use this:

_index

But what do you use for an HTML page?

Static Image:

Code:

#i_icon_mini_index {
    background-image: url('IMAGE LINK GOES HERE');
    width: XYpx;
    height: XYpx;
    }

Mouseover Image:

Code:

#i_icon_mini_index:hover {
    background-image: url('IMAGE HOVER LINK GOES HERE');
    width: XYpx;
    height: XYpx;
    }

Do you mean with buttons you add yourself?

You give them a classname or ID and use that.

OK thanks LG