1.媒体查询

// 屏幕宽度
@media screen and (max-width: 1680px) {
    html,
    body {
        font-size: 14px;
    }
}

// 设备宽度
@media screen and (max-device-width: 1366px) {
    html,
    body {
        font-size: 12px;
    }
}

@media screen and (max-width: 1680px) {
  html,
  body {
    font-size: 14px;
    min-width: 1600px;
    min-height: 800px;
  }
}