Does a "pyramid" structure help guide UX in lists?

The context here is presenting a short feature list on a website. My searches have not yielded any specific research on what makes for a good structure for a list of features. Intuitively, I have a feeling that guiding the UX by

• Centering the feature list items in their container
• Starting with the simplest, most easily understood feature
• Structuring the length of the subsequent items to create a "pyramid"

would help spark and hold the user's attention. Here is what I mean

              Saves Money
        Works with or without gas
Pollution free, noise free, easy to control

I am curious to know if there is any evidence out there that this does indeed help. That apart, are there any formal studies that look at the impact of list item content and layout on UX? Hopefully, someone here will be able to comment