Create feature sections

I have searched but cannot find a solution, basically what I am looking for is to have a number of sections that have a specific style on the homepage, that can be edited by the site admin without the need to edit HTML code each time the section needs to be changed.

This is an example of what I mean, the featured product and our innovation sections. I would like similar sections on my homepage.

I have looked at adding additional loops, like this, but cannot get it to work. What I looking to do is use WP as a CMS and need some help in setting it up to do so.