如何在JavaScript中动态创建新div，更改它，移动它，以各种可能的方式修改它？

I want to create new divs as the page loads. These divs will appear as an ordered group which changes depending upon external data from a JSON file. I will need to do this with a for loop because there are over 100 divs needed.I want to create new divs as the page loads. Th