Gary Illyes from Google categorically at PubCon emphasized that the place where you set the content on your page can impact your rankings. He made such comment in relation to how you notice the ranking changes with the mobile first index if your mobile pages have content in different places than the desktop version.
Look at the comments on tweets
It is known for long that CSS positioning no longer is as important as it was earlier. Just shifting the content material to the highest of your web page within the code, even if it’s at the footer might not work. Maybe for this featured snippet, it worked but generally not so much.
Google renders the best way your web page to appear and in keeping with that, it gets aware of the positioning of your content material positioned on your web page. Though this isn’t new to some SEOs, now this is being strongly underlined by Google.