html5 - z-index is valid in browser debugging but invalid in mobile phone testing

Question

After a drag event occurs during browser debugging, the arrow is hidden
But it is not easy to use in WeChat on mobile phones

There is animation on this element. Deleting the animation will make it effective. Adding it will make it invalid.

There is no floating reason or positioning reason in the current style file because there is no problem in the browser

Answer 1

Post the specific code or write down a demo of the problem!

Answer 2

I encountered http://www.jianshu.com/p/48fa before using transfrom...I don’t know if this is the problem you have with ni'zhe'ge