title: CSS Nth-Child Checkered
body: <p>I'm trying to use nth-child to change background colors of divs. Below is an image of how I want to change the background colors. How would I do this with nth-child?</p>
  
  <p><img src="https://i.stack.imgur.com/de7Y5.png" alt="enter image description here"></p>
  
  <p>Each box should be 25% width of it's parent container.</p>