Imbedding video into product page

[Beadworkz]

I have managed to successfully imbed video into my product page in the description. Thanks to Ollie for help with that! It worked really well for one video, but the others are ending up at the bottom of the page, which means customers need to scroll empty space to find the videos. I'm not sure what I have done wrong with these, and have been trying to sort it out to no avail. If you have a chance can you please check my shop, and tell me what you think I can do? www.beadworkzdunedin.co.nz

You can find my successful attempt on the Celtic Tassel Earrings page, and an example of what is generally happening on the Ombre Tassel Earring page.

Many thanks !

Hannah