Hi Molly Molter — If you look around popular sites on the web, there aren’t many buttons that also have underlined text. Common web design practice is that the larger, colored background of a button compared with the text around is a sufficient visual difference. A few examples are the “Subscribe” buttons on youtube.com, search buttons on google.com, “Sign Up” button on evernote.com and many other pages.
However, if you’d like to do this in your story you can add the following CSS to either the normal or hover state of your button:
text-decoration: underline !important;