Ключевые слова: blank, book, cellphone, communication, communicator, computer, design, device, digital, display, ebook, electronic, element, empty, flat, gadget, horizontal, human, illustration, isolated, laptop, mobile, monitor, page, pc, pda, phone, reader, reading, screen, shadow, showing, simple, smart, smartphone, tablet, telephone, touchpad, touchscreen, using, vertically, white,