Hi
Thanks for quick reply.
By full-width I mean sections that stretch the entire width of the screen (what some themes refer as 100% width), e.g. sliders at the top of the section.
If you can check this link, https://migrationology.com/travel-guides/bangkok-thailand/ , I want to have picture in the top section of a page/post like that. Basically, I want ability to display images and videos full screen.
Hope this clarify my requirement.