URL shortening API landing page | HTML, CSS, JavaScript

Hi! It's been a while since i did a challenge without using a framework, so in this one I only used plain HTML, CSS and JavaScript in order to prevent loosing practice in the bases. About the challenge, i did that if there's more than 4 shortened links, the last one get removed, this is to prevent adding infinite shortened links, i thought about allowing the user to choose the maximum amount of shortened links but at the end i considered it unnecessary. Hope that you like it!