How to set the page width. Version 3.7.1

On version 3.7.1 I can’t figure out how to set the page width on the visual settings. I don’t want to use page builder because the writing options are extremely limited. For example you can’t use bullet points.
I am trying to make a bullet list of products/services that our company offers and I want it to be half the width of the page, not the full width. In Microsoft word you can simply just highlight all the text and drag the arrow at the top of the screen to adjust the width, but with wordpress you can’t do that.
Please help.