Should I use an iframe or not?

Question

css

Good evening!

How to make such a thing so that all this is not in one document, i.e. goods, and separately, I don’t know how, but for some reason the idea came to my mind to use an iframe, and another form. Well, I created a separate folder where I put the goods.html and wrote it like this, but it doesn’t work, what can you tell me?
<iframe src="iframe/catalog.html"> </iframe>

Answer 1

Read about dom manipulation and pagination