The h5 page test environment of mobile phone is different from that of local

  html5, question

I made a control to select the birthday date, month and year, h5.
Perfect operation in the local, in the test, the annual slide. My thinking is that every scroll sliding year, or month, DOM updates are made to all the year, month and day, so that it is smooth locally. How can gg be tested? Under the test environment, only the day can slide. Do you want to make some changes and update DOM only for Japan? Is there another reason?

It is possible that a transparent dom on the mobile phone shifted and wrapped to cover the dom originally monitored, or that the built-in browser cannot render css normally, causing some elements to be mispositioned. Last year, I found that the built-in browser of WeChat had some problems rendering pseudo elements.