fonts/ahem.css" />
<style>
  #grid {
    display: grid;
    font: 100px/1 Ahem;
    grid-template-columns: 25px 25px 25px 25px;
    grid-template-rows: 25px 25px 25px 25px;
  }

  #blue {
    color: blue;
    z-index: -5;
    grid-column: 1;
    grid-row: 1;
  }

  #yellow {
    color: yellow;
    z-index: -1;
    grid-column: 2;
    grid-row: 2;
  }

  #green {
    color: green;
    grid-column: 3;
    grid-row: 3;
  }
</style>
<p>Test passes if there are 3 filled squares with the same size, and <strong>gr