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console 命令行工具 X clear

                    
>
console
    <div class="grid-container">
        <div class="item1">1</div>
        <div>2</div>
        <div>3</div>
        <div>4</div>
        <div>5</div>
        <div>6</div>
        <div>7</div>
        <div>8</div>
        <div>9</div>
    </div>
.grid-container{
  display: grid;
  grid-template-columns: 100px 100px 100px;
  grid-template-rows: 100px 100px 100px;
  height: 100%;
  background: #d4d4d4;
  grid-gap: 10px;
}
.grid-container > div {
  border: 1px grey solid;
}
.item1{
  grid-column: 3/4;
  grid-row: 2/3;
}

html,body{
  height: 100%;
  width: 100%;
}