URL Shortening Page Using HTML, TailwindCSS and JS

I really thought this challenge would be straightforward but it has really been a challenge. I'm stuck on how to set the whole output div to localStorage and I've researched but to no avail. The output div also keeps duplicating. If I shorten two different links, the first one outputs really ok but if I try to shorten another link, it shows two of the previously shortened links and my current link summing it up to 3 divs instead of just 2. I think my approach to displaying the output might be the issue. Any help would be appreciated. Thank you.

#Edit: I discovered what made my divs duplicate and I displayed the links by using the createElement function rather than the map method I used before. I'm still stuck on setting it o localStorage tho...