.whatsapp {
  background: #25d366;
  font-size: initial;
  transition: transform .2s, background .2s;
}

.whatsapp:hover {
  background: #1fbd5b;
  transform: scale(1.06);
}

.whatsapp svg {
  display: block;
  width: 31px;
  height: 31px;
}