Ключевые слова: advertising, background, banner, bar, black, board, business, cafe, cafeteria, coffee, coffee shop, customer, design, door, entrance, food, front, glass, grocery, hanging, information, lockdown, message, nobody, notice, now open, open, open sign, pandemic, people, restaurant, retail, service, shop, sign, signboard, small business, stainless, store, symbol, text, virus, welcome, window,