I advised some to make good use of HTML5 elements (tags) that Webflow conveniently put at your disposition in the settings tab. I've been asked for more details but I can't find the post back, so here are some more infos.
In short, those HTML5 elements are semantic elements, or elements that have a meaning.
The the good practice with Webflow is to give your section the proper HTML5 tag.
Here are links to help you get started with that: