List Style

How can I make list items appear in a row, without style, and seemingly a part of a paragraph? I’ve tried customizing with CSS but nothing seems to work.

For example, it currently displays as:

To Person 1,

Person 2
Person 3
Person 4

I want it to display as:

To Person 1, Person 2, Person 3, Person 4

Help would be greatly appreciated.

Thanks!