Why does an emoticon appear from behind the text input field in hangouts?

Question

Android

Hello. I apologize for Friday and some off-topic question.
A couple of times I noticed when entering text in the hangouts chat (version 2.5.83281670) on the phone (nexus5, android 5.0.1) something similar to a smiley face that "crawls out" because of the text input field. It pops up and hides right away.
Google doesn't understand what I want from it when I try to google. What is it, gentlemen?

Answer 1

The Easter egg is visible:
geektimes.ru/company/google/blog/244732

Answer 2

Yes, it's an easter egg. Caught it twice with Nexus 5.

Answer 3

It would be better if you sent an example. The problem with the fact that something fits on top of you there is solved using the z-index property.

.container-block {
  position: relative;
  z-index: 1;
}

don't forget to specify . Read about layers ____ In your example, you need to add to the classposition: relative;

position: relative;
z-index: 11;