body { font-family: 'Arial', sans-serif; line-height: 1.6; margin: 20px; max-width: 800px; margin-left: auto; margin-right: auto; } h2 { color: #333; border-bottom: 2px solid #ccc; padding-bottom: 5px; } p { color: #555; } ol, ul { color: #555; margin-bottom: 20px; } li { margin-bottom: 10px; } ヘルシー…