On my home page https://www.touchgram.com/ I have several pieces of text where I want them to be in different font styles depending on being shown on mobile or not.

The only way I have found is to duplicate them and change the visibility to be desktop+tablet vs phone.

This makes editing the site very hard as I see both lots of content and wastes space.

Is the only way to fix it to use my own custom CSS instead of your visual editors?