{
doc1.innerHTML = "<div id='parent'>"
+ "<span>1111</span>"
+ "<span>2222</span>"
+ "<span>3333</span>"
+"</div>"
+"<div id='parent2'>"
+ "<span>aaaa</span>"
+ "<span>bbbb</span>"
+ "<span>cccc</span>"
+"</div>";
let newOl = document.createElement("ol");
let li1 = document.createElement("li");
li1.textContent = "첫번째 리스트 아이템";
let li2 = document.createElement("li");
li2.textContent = "두번째 리스트 아이템";
newOl.appendChild(li1);
newOl.appendChild(li2);
let parent = document.querySelector("#parent");
parent.appendChild(newOl);
let newOl2 = newOl.cloneNode(true);
let parent2 = document.querySelector("#parent2");
parent2.appendChild(newOl2);
}