Idle Breathe CSS Button

.btn-idle-breathe {
  display: inline-block;
  padding: 12px 28px;
  border: none;
  border-radius: 999px;
  background: #0ea5e9;
  color: #ffffff;
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  animation: btn-idle-breathe-flow 3s ease-in-out infinite;
}
.btn-idle-breathe:hover {
  animation-duration: 1s;
}
@keyframes btn-idle-breathe-flow {
  0%, 100% {
    transform: scale(1, 1);
  }
  50% {
    transform: scale(1.04, 0.96);
  }
}
.btn-idle-breathe:focus-visible {
  outline: 2px solid #0ea5e9;
  outline-offset: 3px;
}