I was making a list of links for a website that I am creating but it stoped working when I ran it.

        <ul>

            <li><a href="http://www.youtube.com/@Wilson-AM"target="_blank> Youtube (main) </a></li>
           <li><a href="http://www.youtube.com/@MrMagoo8888-" target="_blank> Youtube (Alt) </a></li>
            <li><a href="https://mrmagoo8888.itch.io" target="_blank> Itch.io </a></li>
            <li><a href="https://github.com/MrMagoo8888" target="_blank"> GitHub </a></li>
        
        </ul>

I have tried replacing it but I am at a loss for solutions. Nothing worked.