??? ??? ?? ?????? ??? ???? ???? - ????? ?????? ?????? body font-family: 'Arial', sans-serif; line-height: 1.8; background-color: #f7f7f7; margin: 0; padding: 20px; color: #333; h1, h2, h3 color: #1e90ff; p margin-bottom: 20px; ol, ul margin: 20px