Light gray background and dashed border shows to layout column boundaries. Padding of 1 rem (16px) has been added to layout columns using CSS to show spacing. The reason they are not the same all the way around is the inner div has left and right margin (column spacing) applied by default. Below is no padding on the layout columns. Avada settings impact the inner-wrapper div.
This shows the the inner-wrapper div (light green) with padding (2rem) and the div (white) surrounding the text element (0 margin). Paragraphs have default margins for spacing.