html/canvas/resources/canvas-grid-reftest.css

h1 {
  font-size: 20px;
}

.grid-container {
  display: grid;
  gap: 4px;
  grid-template-columns: repeat(var(--grid-width), max-content);
  font-size: 13px;
  text-align: center;
}

.grid-cell-content {
  display: block;
  margin: 0 auto;
  outline: 1px solid black;
}