[TaviCalderon]

thanks guys!! i didn't realize i needed to add that line into wide_titlepage_entries, lol. thought i just needed to clear out what was in wide_titlepage_entries by default to make it work. my bad!

appreciate all your help to anyone else who is frantically googling and cannot find answers: if you want the summary/description of the work to be italicized on your title page for epubs, below is what i added and now it works!

Spoiler:

titlepage_entry:<b class="fff_tp_label" id="${id}_label">${label}:</b> <span class="fff_tp_value" id="${id}_value">${value}</span><br />

wide_titlepage_entries:<b class="fff_tp_label" id="${id}_label">${label}:</b> <span class="fff_tp_value" id="${id}_value">${value}</span><br />

add_to_output_css:
 #description_value {
    font-style:italic;
 }