you have to scroll down a little to be able to click it, kinda weird but it is what it is lel
Your Links div is overlapping the Guestbook div. I wouldn't recommend using relative positions as they don't seem necessary with the current layout. If relative positions are necessary you could move them about so they don't overlap or set the divs width so it isn't the size of the page.
last question, then ill stop bothering lol, should i use absolute over relative position?
Ah now I can see what you wanted the page to look like I can see why you used relative positions. Also I would say that Fixed is the one you want as it is based on the browser window, here is a useful link : https://kolosek.com/css-position-relative-vs-position-absolute/#:~:text=Relative%20%2D%20the%20element%20is%20positioned,related%20to%20the%20browser%20window.
You could also have a look at my Pics page to get an Idea of how I have done this kind of thing. Feel Free to steal.
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