7/before"
      data-description="Slot is a display block inside a grid container.">
  <template shadowrootmode="open">
    <style>
    .wrapper {
      display: grid;
      reading-flow: grid-order;
    }
    </style>
    <div class="wrapper">
      <button style="order: 5" id="before">Before</button>
      <slot style="display: block; order: 4"></slot>
      <button style="order: 3" id="after">After</button>
    </div>
  </template>
  <button id="a7" style="order: 7">A</button>
  <button id="b7" style="or