#tarcza {
  position: absolute;
  z-index: -3;
}
#godzina {
  position: absolute;
  z-index: -2;
}
#sekunda {
  position: absolute;
  z-index: 0;
  
}
#minuta {
  position: absolute;
  z-index: -1;
}

#kolko {
	position: absolute;
	z-index:1;
}