Not sure how to do this

I have a client that gave me a PowerPoint of how he wants his pages in his site. There are 4 slides that look like I will have to create a tabbed menu system within the main content area to cover the 4 parts that he outlined. After some thought I am stuck as to how to proceed. Could someone give me some advise as to how to duplicate what he is looking for? The site is uploaded to

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