Zebra striped list

Creates a striped list with alternating background colors.

• Use the :nth-child(odd) or :nth-child(even) pseudo-class selectors to apply a different background-color to elements that match based on their position in a group of siblings.

<ul>
  <li>Item 01</li>
  <li>Item 02</li>
  <li>Item 03</li>
  <li>Item 04</li>
  <li>Item 05</li>
</ul>

li:nth-child(odd) {
  background-color: #999;
}