Use insertAfter() method to add a new element after an existing element

The code copy is as follows:

//Add a new element after the existing element

function insertAfter(newElement, targetElement){

var parent = targetElement.parentNode;

if (parent.lastChild == targetElement){

parent.appendChild(newElement);

} else {

parent.insertBefore(newElement,targetElement.nextSibling);

}

}