Ключевые слова: abstract, art, backdrop, background, black, blank, book, classic, copybook, cover, decorative, design, diagonal, document, education, element, empty, geometric, graphic, gray, illustration, line, lined, lines, modern, note, notebook, notepad, pad, page, paper, pattern, print, repeat, retro, school, shape, sheet, stripe, striped, stripes, style, surface, technology, template, texture, vintage, wallpaper, white,