.botao{border-radius:70px;box-shadow:0 0 0 0 rgba(9,165,19,0.5);animation:pulse 1.8s infinite;transition:background 0.3s ease-in-out}@keyframes pulse{0%{transform:scale(1);box-shadow:0 0 0 0 rgba(9,165,19,0.5)}70%{transform:scale(1.05);box-shadow:0 0 0 15px rgba(9,165,19,0)}100%{transform:scale(1);box-shadow:0 0 0 0 rgba(9,165,19,0)}}