#robbu-whatsapp-button {
    display: flex;
    position: fixed;
    background: #25d366;
    bottom: 25px;
    border-radius: 50%;
    width: 70px;
    height: 70px;
    box-shadow: 2px 2px 12px rgba(22,124,60,0.2);
    transition: 0.4s;
    align-items: center;
    justify-content: center;
}

#robbu-whatsapp-button > .rwb-tooltip {
    position: absolute;
    bottom: 100%;
    margin-bottom: 30px;
    border-radius: 4px;
    padding: 15px;
    color: #2d2d2d;
    font-size: 16px;
    white-space: nowrap;
    box-shadow: 2px 2px 12px rgba(0,0,0,0.2);
    opacity: 0;
    transition: 0.4s;
    pointer-events: none;
}

#robbu-whatsapp-button > .rwb-tooltip:after {
    display: block;
    content: "";
    position: absolute;
    top: 85%;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 6px 7px 0 7px;
    border-color: #fff transparent transparent transparent;
    transition: 0.4s;
}

#robbu-whatsapp-button.left {
    left: 25px;
}

#robbu-whatsapp-button.left > .rwb-tooltip {
    left: 0;
    transform: translateX(-10%);
}

#robbu-whatsapp-button.left > .rwb-tooltip:after {
    left: 23px;
}

#robbu-whatsapp-button:not(.left) {
    left: 25px;
}

#robbu-whatsapp-button:not(.left) > .rwb-tooltip {
    left: 0;
    transform: translateX(10%);
}

#robbu-whatsapp-button:not(.left) > .rwb-tooltip:after {
    right: 23px;
}

#robbu-whatsapp-button > img {
    display: block;
    width: 34px;
    height: 34px;
}

#robbu-whatsapp-button:hover {
    background: #21bd5c;
    box-shadow: 3px 3px 12px rgba(14,81,39,0.4);
}

#robbu-whatsapp-button:hover > .rwb-tooltip {
    opacity: 1;
    transform: translateX(0);
}

#robbu-whatsapp-button:hover > .rwb-tooltip:after {
    top: 100%;
    transition-delay: 0.4s;
}