CSS Grid布局-响应式网格

<style>
  .grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 10px;
    background-color: #e8e8e8;
    padding: 10px;
  }
  .grid-item {
    background-color: #2196F3;
    border: 1px solid #000;
    color: white;
    font-size: 24px;
    font-weight: bold;
    text-align: center;
    min-height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
</style>
<div class="grid">
  <div class="grid-item">1</div>
  <div class="grid-item">2</div>
  <div class="grid-item">3</div>