CodePen Embed - Traversing the DOM

<ul id="list">
  <li>Milk</li>
  <li>Bread</li>
  <li>Eggs</li>
</ul>

html, body {
  height: 100%; 
}

body {
  display: grid;
  justify-items: center;
  align-items: center;
}

const list = document.getElementById('list')
const firstItem = list.firstElementChild

firstItem.style.backgroundColor = '#fff3cd'

This Pen is owned by IMD on CodePen.

This Pen doesn't use any external JavaScript resources.