.whatsapp-button{
  position:fixed;
  bottom:30px;
  right:30px;
  width:75px;
  height:75px;
  background:#2E7D32;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 12px 30px rgba(0,0,0,0.25);
  z-index:1000;
  transition:transform 0.2s ease;
  animation:whatsappPulseButton 1s ease-out 5;
  animation-delay:5s;
  animation-fill-mode:forwards;
}

.whatsapp-button svg{
  width:36px;
  height:36px;
}

.whatsapp-button:hover{
  transform:scale(1.1);
}

@keyframes whatsappPulseButton{
  0%{
    box-shadow:0 0 0 0 rgba(46,125,50,0.5);
  }

  70%{
    box-shadow:0 0 0 32px rgba(46,125,50,0);
  }

  100%{
    box-shadow:0 0 0 0 rgba(46,125,50,0);
  }
}

@media (max-width:900px){
  .whatsapp-button{
    width:60px;
    height:60px;
    bottom:10px;
    right:10px;
  }

  .whatsapp-button svg{
    width:28px;
    height:28px;
  }
}