Good afternoon! I'm a beginner in web-based programming, and I'm having trouble removing a space that I call the "margin" of the background image on the page, which is responsive to a width:100%
(). width of the page, but it is not totally occupying, this one presenting a small "margin" ) I wanted it to be without this "margin" ie leaning completely in the corner of the window, can give me sujestoes than this problem is it?