text: The Wikipedia article-edit window is not designed for side-by-side editing , due to the formatted preview-article usually being on the top-half the page , while the edit-buffer is typically far below ( near page bottom ) .
simplified: The Wikipedia article-edit window is not designed for side-by-side editing : instead , the formatted preview-article is usually on the top-half the page and the edit-buffer is typically far below ( near page bottom ) .