Ключевые слова: background, blank, blue, business, color, communication, copy, correspondence, design, document, empty, envelope, flat, grey, horizontal, image, indoors, invitation, isolated, lay, letter, mail, message, minimal, minimalism, mockup, nobody, object, office, one, paper, pastel, postage, postal, send, sending, shot, simple, single, space, stationery, studio, template, top, view, white,