I am looking to create a website where the content is placed below a fixed header and footer. Navigation is to be done through anchors, with only the active anchor being displayed while the rest remains hidden by the header and footer (similar to a window). I have managed to position the content, header, and footer, but I am unsure of how to set the anchors so that when clicked, the content of the anchor appears in the precise location between the header and footer.
I hope someone can understand my vision.
I am looking to achieve this using only CSS and HTML, without the use of jQuery or JavaScript.
For reference, please see the following example: