有没有告诉我的gp1类列从网格位置1开始，到max-1结束，记住这是一个动态网格？

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.widthContainer {
  width:400px;
  height:300px;
  background-color:#eee;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, 50px);
  grid-template-rows: repeat(auto-fit, 25px);
  min-height: 98%;
}

.grid>div {
  grid-column: 1/-1;
  grid-row: 1/-1;
  grid-template-columns: repeat(auto-fill, minmax(50px, 1fr));
  grid-template-rows: repeat(auto-fill, minmax(25px, 1fr));
  display: grid;
}

.gp1 {
  background-color: #aaa;
  grid-row-start: 2;
  grid-row-end: 4;
  grid-column-start:2;
  grid-column-end:4;
}

<div class="widthContainer">
  <div class="grid">
    <div class="bkg">
      <div class="gp1">
        <div>
          <p>content</p>
        </div>
      </div>
    </div>
  </div>
</div>

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