.whats-button {
  color: #FFF;
    background: #25bb3f;
    max-width: 80px;
    padding: 10px;
    text-align: center;
    border-radius: 10px 0 0 10px;
    position: fixed;
    right: 0;
    top: 50%;
    z-index: 95;
    -webkit-box-shadow: -5px 5px 20px rgba(246, 135, 27, 0.4);
    box-shadow: -5px 5px 20px rgba(246, 135, 27, 0.4);
}

.pre-button {
  color: #FFF;
    background: #ff0000;
    max-width: 80px;
    padding: 10px;
    text-align: center;
    border-radius: 0px 10px 10px 0px;
    position: fixed;
    left: 0;
    top: 50%;
    z-index: 98;
    -webkit-box-shadow: -5px 5px 20px rgba(246, 135, 27, 0.4);
    box-shadow: -5px 5px 20px rgba(246, 135, 27, 0.4);
}

.pre-button:before {
  content: "";
  border-radius: 50px;
  border: 5px solid #ff0000;
  transition: 0.3s;
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
}

.whats-button:before {
  content: "";
  border-radius: 50px;
  border: 5px solid #25bb3f;
  transition: 0.3s;
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
}

.pre-button:before {
	-webkit-animation: whats-border .6s infinite;
	animation: whats-border .6s infinite
}
.whats-button:before {
	-webkit-animation: whats-border .6s infinite;
	animation: whats-border .6s infinite
}

@-webkit-keyframes whats-border {
	100% {
		top: -12px;
		right: -12px;
		bottom: -12px;
		left: -12px;
		opacity: 0
	}
}

@keyframes whats-border {
	100% {
		top: -12px;
		right: -12px;
		bottom: -12px;
		left: -12px;
		opacity: 0
	}
}

.gpr-whatsapp{
  background-color: #25d366;
  padding: 0.6rem 2rem;
  color: white !important;
  border: 4px solid white;
  border-radius: 24px;
  display: inline-block;
}
.gpr-whatsapp .fa{
  display: inline-block;
  margin-right:0.5rem;
}