#emojis-container img {
  width: 64px;
  height: 64px;

  margin: 10px;

  cursor: pointer;

  transition-property: width, height, margin;
  transition-duration: 0.2s;
}

#emojis-container img:hover {
  width: 80px;
  height: 80px;

  margin: 2px;
}

#emojis-container img:active {
  width: 70px;
  height: 70px;

  margin: 7px;
}