I am trying to widen the container of my wordpress. I appear to have managed to do this but there is a still a thin margin line between the content and the side bar which is inappropriately placed which I’d like to move so it’s next to the sidebar.
Actually, to keep the line try the following. I just noticed that the image is not full-width so I just adjusted the horizontal positioning value. I’ve put in the absolute URL since if we kept the relative URL, it would break in your custom CSS.