Ключевые слова: address, background, blank, business, card, clean, color, communication, copy, correspondence, cover, delivery, design, document, empty, envelope, greeting, grey, information, invitation, letter, mail, message, mockup, nobody, notification, object, office, open, paper, post, postage, postal, postcard, receive, send, sheet, simple, space, stationery, style, symbol, text, top, view, white,