Make links work

I'm novice designer. The links on all pages need to work. Make them work. Could be <position relative or z-index etc. Not sure. Simple task. You must make all changes on my server. I don't want these pages on other servers where google will pick up and serve info I don't want association with this domain. You could just inspect, index page (the landing page) and one other page (which has all the href's and tell me what to do and I can make changes to all other pages. So I could send you 2 txt files and you make the changes. This way no html pages hit internet.