facebook comments API-Facebook在“评论框后面”是什么意思？

Question

I am reading the comments API of facebook from here https://developers.facebook.com/docs/plugins/comments/ and dont understand what they mean by this:

Simply grab the comments from the API and 
render them in the body of your page behind the comments box

I know how to grap but how do i render them behind the comments box ? comment box is an iframe and i cannot plug any content into it, right? what do they mean by behind the comments box ?

for any guidance, i would be thankful

Answer 1

HTML is layered according to the order of the elements in the code.

You can also control this with z-index and position properties from CSS.

I suppose they mean you should render this with a lower z-index then the comment box containing element.