const ul = document.createElement('ul')
const li1 = document.createElement('li')
const li2 = document.createElement('li')
body.appendChild(ul)
ul.append(li1, li2)
li1.innerText = 'Hello'
li2.innerHTML = '<strong>Hello</strong>'
li1.style.color = 'blue'
li2.setAttribute('id', 'myId')
li1.remove()