Ключевые слова: 2021, background, card, celebration, christmas, claus, corona, covid, covid19, decoration, disease, epidemic, eve, festive, figure, fir, flu, gift, greeting, happy, health, holiday, illness, infection, mask, medical, merry, new, new year, night, pandemic, present, prevention, quarantine, restriction, safety, santa, season, snow, toy, traditional, tree, vaccine, virus, winter, xmas, year,