Editing appearance of form button

I use the following to create a button:

<form><input type=button value="See the Site Map"
onClick="self.location='sitemap.htm'"></form>

Is there a way to edit the code to accomplish any of the following?

1. Make the displayed text a two-line value, e.g., "See the" on one
line and "Site Map" on a new line.

2. Render the button itself in a different size or colors.

3. Make the text a different font or size or color, etc.

4. Insert images in place of the text.

I don't think it matters, but I edit using FrontPage 2003 on an XP Pro
machine. I'm hoping for compatibility with at least IE and Firefox.

Thanks for any advice you have. If there's somewhere online that
explains all this, just let me know that. I've spent a long time
looking already.

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