模板:国内商家/styles.css

 .responsive-container {
    display: flex;
    flex-direction: column;
    border: 1px solid #ddd; /* 边框颜色 */
    border-radius: 5px; /* 边框圆角 */
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.15); /* 阴影效果 */
  }
  .responsive-container > div {
    margin: 15px;
  }
  @media (min-width: 768px) {
    .responsive-container {
      flex-direction: row;
    }
    .responsive-container > div {
      flex: 1;
    }
  }