Remove underscore from buttons, add Alt text

Hi,

Thanks in advance for your help. I am having more problems with the RH's Govt template. The forward and back buttons would not appear, so I have created my own buttons and incorporated into my user guide. However, there is an underscore appearing in between my buttons (it's not on my images). If I remove this underscore from the Topic (default) page of the template, it removes one of my buttons. My developer can't figure this one out either.

Also, when I add the Alt text into the HTML code, it does not appear when I generate the file. Here's where I am with this now:

1. RH's Back/next does not work, so I went into the Layout and added my own buttons, which appear here on the Topic (default) page of the template. What are all the underscores?

2.  This is the generated User Guide - any attempt to remove this underscore will delete the button on the right.

3.  This is my coding. You see that I have the Alt text in the coding, however, it does not appear in the generated user guide. Also, I don't see anything resembling an underscore in the coding.