#robbu-whatsapp-button {
    display: flex;
    position: fixed;
    background: #25d366;
    bottom: 25px;
    border-radius: 50%;
    width: 64px;
    height: 64px;
    box-shadow: 2px 2px 12px rgba(22,124,60,.2);
    transition: .4s;
    align-items: center;
    justify-content: center
    }

      #robbu-whatsapp-button > .rwb-tooltip {
        position: absolute;
        bottom: 100%;
        margin-bottom: 20px;
        border-radius: 4px;
        padding: 15px;
        color: #2d2d2d;
        font-size: 16px;
        white-space: nowrap;
        box-shadow: 2px 2px 12px rgba(0,0,0,.2);
        opacity: 0;
        transition: .4s;
        pointer-events: none; 
        background: rgb(255,255,255, 0.9);
        z-index: 999;
      }

    #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: .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) {
    right: 25px
    }

    #robbu-whatsapp-button:not(.left) > .rwb-tooltip {
    right: 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,.4)
    }

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

    #robbu-whatsapp-button:hover > .rwb-tooltip:after {
        top: 100%;
        transition-delay: .4s
    }