How To Hide Fieldset Title From Email Body

Is there a way to prevent fieldset titles from showing in emails? For example, I use a fieldset entitled About You. I don’t want that to show in the body of the recipients email. I have tried unselecting all values in the fieldset but the title still shows. I also tried adding CSS in the email handler field using the source option and wrapping the css in style tags, but the code just disappears upon saving. enter image description here