<!DOCTYPE html>
<html>
<body>
<ul id="myList1"><li>Coffee</li><li>Tea</li></ul>
<ul id="myList2"><li>Water</li><li>Milk</li></ul>
<p>Click the button to move an item from one list to another</p>
<button onclick="myFunction()">Try it</button>
<script>
function myFunction() {
var node = document.getElementById("myList2").lastChild;
var list = document.getElementById("myList1");
list.insertBefore(node, list.childNodes[0]);
}
</script>
</body>
</html>