Israe wants to make the dark blue section of their website's footer wider and needs help finding where to modify the code, possibly CSS.

Olia explains that the footer's appearance is controlled by CSS. Israe should edit the `child.css` file within their theme (accessible via Design Manager -> Theme Folder -> css/child.css on the left pane) and add or modify the CSS rules for the footer element, likely overriding the `background` or potentially `padding`/`height` properties for the relevant footer class.