.float-button {
        text-decoration: none;
        position: fixed;
        width:45px;
	     height:45px;
        bottom: 85px;
        right: 30px;
        color: #fff;
        background-color:#25D366;
        border-radius: 50%;
        z-index: 100;
        font-family: Arial;
        animation: whatsapp-animation 0.5s ease-in-out;
        box-shadow: 1px 2px 5px 2px rgba(30,30,30,0.3);
        transition:all 0.3s ease-out;
        text-align:center;
        line-height: 54px;
    }

    .float-button:hover {
         background-color: #128C7E;
          color: #fff;
    }

    .fa-whatsapp {
        font-size: 25px !important;
        color: #fff;
    }

    @keyframes whatsapp-animation {
        from {
            opacity: 0%;
        }

        to {
            opacity: 100%
        }
    }

    @media screen and (max-width: 545px) {
        span {
            display: none;
        }

        .float-button {
            bottom: 80px;
            right: 30px;
            border-radius: 50%;
            line-height: 44px;
        }

        .fa-whatsapp {
            font-size: 25px !important;
        }
    }