I just realized you have two questions so I guess I should do two answers?

<div class="sidebar" contenteditable>

contenteditable is an attribute for which you must provide a value. Just putting the attribute there without saying contenteditable=true/false is invalid HTML. And I think when it's true that is what is preventing you from clicking so you'll probably want it false?

Change it like this:

<div class="sidebar" contenteditable="false">

Then try it again. That will fix the issue of your links not being clickable. Is there a reason you need it to be true? When you specify that contentededitable=true or if you leave it empty, it will be assumed true, which means you are saying to the browser that the user should be able to edit the links.

Also it's better to have only one question per post I think.