If you need to delete an HTML element like one <div> or any other element existing in the HTML Document you have to :
1. Get the element by ID :
var element = document.getElementById("IdOfDiv");
2. Delete this element :
element.parentNode.removeChild(element);
If you need to insert an HTML element like one <div> or any other element before an existing element , try this simple tuto : how to insert an HTML element before another ?
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