<style>
    * {
        margin: 0;
    }
    body {
        background-color: white;
    }
</style>
<!-- To rebase:
  1. Open css-backgrounds.html in Ladybird
  2. Resize the window just above the width of the largest element
  3. Right click > "Take Full Screenshot"
  4. Update the image below:
-->
<img src="../images/css-transform-box-ref.png">