Use CSS Style Sheets
FrontPage
Click [ Format ] / [ Style ] . You now have two options, you can modify an existing tag such as h1 or you can create your own.
Modifying an existing tag:
Say I want my heading 1 to look green and italicized. I would select h1 from the list of styles and click [ Modify…]. At the bottom of the ‘Modify Style’ box click on [ Format ], under the font box I can change the color and make it Italic.
Create your own class:
Click [ New ] and give it a unique name. Then click on [ Format ] to edit what the style should look like.
To implement your new style in text, highlight the text and under the style dropdown box select your style:
By default your style box will be selected on Normal.
For more help with FrontPage and CSS, visit Microsoft's FrontPage CSS Site.