How to move one HTML element inside another using JavaScript?

`. The problem is that after moving, the element should be actually moved, not copied — that is, it should disappear from the old location and appear in the new one. Here is my markup: ```html ``` I tried using `appendChild`, but it seems to only work when creating new elements. And if the element already exists in the DOM — does it get copied or moved? Also, what about jQuery? Many people recommend using `.appendTo()`, but I want to understand pure JavaS