     }
    </style>

    <style class="editable">
      .grid {
        display: grid;
        gap: 10px;
        grid-template-columns: masonry;
        grid-template-rows: repeat(3, 100px);
      }
    </style>
  </head>

  <body>
    <section class="preview">
      <div class="grid">
        <div class="item" style="inline-size: 2em"></div>
        <div class="item" style="inline-size: 3em"></div>
        <div class="item" style="inline-size: 1.6em"></div>
        <div class="item" style="inline-size: 4e