The block on the adaptives on the iPhone is blocked by something. What needs to be done to make it visible?

Question

safari

Made a block. On adaptives (when viewed from a computer), everything is fine. But when you watch it from your phone, there is a problem. As if something is blocking this block. I can’t understand what the problem is ....
Everything is fine on android

spoiler

Answer 1

There is a way - z-index. But this is if you need to take it today. But, if there is time, then, nevertheless, dig and find out what is stopping you there.
#layer1 { z-index: 1000; }