What if the paper does not follow the journal’s layout, format and general style?
Authors are required to adhere to the journal’s Guide for Authors, which includes manuscript presentation. If the difference is extreme and the editor has not mentioned this issue in the request to review, you may wish to contact your editor to discuss it. Otherwise, you should note this in your review. If the paper is otherwise good, the editor may choose to overlook the formatting issues (for example, if the author comes from outside the discipline but has something valuable to convey to the readers of this journal). Other times, editors may ask the author to restructure the paper before publication.