Responsive News Frontpage with GraphQL and React

Some of the difficulties I encountered was adding the overlay class to the body or creating some element to take up the entire screen. The menu exists in the Header.js component but wasn't sure exactly if I can use native JS to target the body element.

Also where I struggled since I used Contentful as the CMS, if was a bit of a challenge trying to sort the posts to get the posts I eventually wanted per component (Featured, New, Blog Feed).

Also, not sure what is the best way to structure the file system for the GraphQL query and just overall the structure of the app. Any feedback there would be appreciated.