NPTEL Answer Key & Assignment Answers - Updated Weekly body font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; line-height: 1.6; margin: 0; padding: 0; background-color: #f4f6f9; color: #333; header, footer background-color: #273c75; color: #fff; text-align: center; padding: 20px 0; .container max-width: