flex实现间距相等的table布局

<!DOCTYPE html>
<html>
<head>
  <style>
    .container {
      width: 800px;
      display: flex;
      flex-wrap: wrap;
      gap: 20px;
      border: 1px solid #ddd;
      margin: 20px;
    }
    
    .cell {
      width: calc(50% - 10px); /* 每列占据一半宽度，减去间隙的宽度 */
      background-color: #f1f1f1;
      padding: 10px;
      box-sizing: border-box;
    }

    body, html {
      height: 100%;
      margin: 0;
    }
  </style>
</head>
<body>
  <div class="container">
    <div class="cell">单元格1</div>
    <div class="cell">单元格2</div>
    <div class="cell">单元格3</div>
    <div class="cell">单元格4</div>
    <div class="cell">单元格5</div>
    <div class="cell">单元格6</div>
  </div>
</body>
</html>