<div class="container">
 <span>Grid 网格布局</span>
 <div class="grid">
    <div class="item">1</div>
    <div class="item">2</div>
    <div class="item">3</div>
    <div class="item">4</div>
    <div class="item">1</div>
    <div class="item">2</div>
    <div class="item">3</div>
    <div class="item">4</div>    
    <div class="item">1</div>
    <div class="item">2</div>
    <div class="item">3</div>
    <div class="item">4</div>
 </div>
</div>
.container {
  width: 500px;
  height: 200px;
  margin: 50px auto;
  text-align: center;
}
.grid {
  width: 500px;
  height: 200px;
  display: grid;
  grid-template-columns: 2fr 1fr 3fr;
}
.item {
  border: 1px solid #000;
  margin: 5px;
  text-align: center;
}
.item:nth-child(n) {
  background: yellow;
}
.item:nth-child(2n) {
  background: #ece8ce;
}
.item:nth-child(3n) {
  background: #f2d1ee;
}
.item:nth-child(4n) {
  background: #bde8f2;
}

External CSS

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External JavaScript

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