css - Mobile h5 player problem needs to be solved, urgent

Question

Click to play the last video, the following situation will appear

What is the reason? The key is that these elements are not in a box

Answer 1

Welcome you to step into the pit of x5 players at the same level, official reference.

The video tag under x5 is at the front by default. If you want to be higher than it, you have to add absolute positioning to the video container and then change the z-index.