25宫格

  .icon-list {
    display: grid;
    grid-template-columns: repeat(5, 1fr); /* 划分为5列 */
    grid-template-rows: repeat(5, 1fr); /* 划分为5行 */
    gap: 12px; /* 间隔为12像素 */
    .icon-item {
      width: 48px;
      height: 48px;
      border-radius: 6px;
      background-repeat: no-repeat;
    }
  }

　　

  .icon-list {
    display: flex;
    flex-wrap: wrap;
    width: calc(100% + 12px);
    .icon-item {
      width: 48px;
      height: 48px;
      border-radius: 6px;
      background-repeat: no-repeat;
      margin-right: 12px;
      margin-bottom: 12px;
    }
  }