Thanks for trying to help. I just want to fix this one issue and then I will move on with my life. I have zero interest in learning how to code. I just want my video to loop, not learn code. If you know how to do that I would love it if you would share your knowledge. I searched all over this forum for an answer before I asked my question. I found that this forum is filled with these types of questions and a lot of kind people sharing their knowledge. If I can't find an answer, I will hire a freelancer.
Problem solved. I didn't see the added " at the end of my video id until I took a closer look. That was the problem. I understand what you mean Kasimir when you said I was closing the tag and everything after it would be ignored. I swear I looked for that " and didn't see it until this morning.
working perfectly with this code: <iframe width="588" height="415" src="https://www.youtube.com/embed/nW1DOdZ8VME?loop=1&rel=0&modestbranding=1 frameborder="0" allowfullscreen></iframe>
That is still not valid, you do need to close the src tag.
<iframe width="588" height="415" src="https://www.youtube.com/embed/nW1DOdZ8VME?loop=1&rel=0&modestbranding=1" frameborder="0" allowfullscreen></iframe>