.whatsapp-btn-container{
    right: -60px;
    opacity: 0;
    bottom: 30px;
    position: fixed;
    animation: fade-up 1000ms forwards;
    animation-delay: 0.8s;
}
.whatsapp-btn-container a{
    display: inline-block;
}
.whatsapp-btn-container span{
    top: -2em;
    left: -0.5em;
    opacity: 0;
    color: #075e54;
    font-weight: bold;
    position: absolute;
    transition: all 0.4s;
    text-shadow:
    -1px -1px 0 #fff,
     1px -1px 0 #fff,
    -1px 1px 0 #fff,
     1px  1px 0 #fff;
    transform: rotatez(20deg) translateX(10px);
}
.whatsapp-btn-container .whatsapp-btn img{
    width: 48px;
    height: 48px;
    padding: 10px;
    transition: 0.3s;
    border-radius: 50px;
    background-color: #25d366;
    box-shadow: 3px 10px 10px rgba(0,0,0,0.15);
}
.whatsapp-btn-container .whatsapp-btn:hover img{
    transform: scale(1.2);
}

.whatsapp-btn-container .whatsapp-btn:hover + span{
    opacity: 1;
    transform: rotatez(0deg) translateX(0px);
}

@keyframes fade-up {
    100%{
        opacity: 1;
        right: 30px;
    }
}

@media only screen and (max-width: 575px) {
    .whatsapp-btn-container{
        right: -40px;
        bottom: 20px;
    }

    @keyframes fade-up {
        100%{
            opacity: 1;
            right: 20px;
        }
    }
}