.back-to-top {
    background-color:red;
    position: fixed;
    right: 20px;
    display: block;
    width: 60px;
    height: 60px;
    line-height: 50px;
    background: #2969b3;
    color: #fff;
    text-align: center;
    text-decoration: none;
    border-radius: 50%;
    opacity: 0;
    -webkit-transform: scale(0.3);
    -ms-transform: scale(0.3);
    transform: scale(0.3);
    box-shadow: 4px 4px 10px rgba(0, 0, 0, 0.2);
    z-index: 9;
    -webkit-transition: all 0.3s;
    transition: all 0.3s;
    bottom: 100px;
    visibility:hidden;
}

    .back-to-top:focus {
        color: #fff;
    }

    .back-to-top.show {
        bottom: 100px;
        right: 20px;
        opacity: 1;
        -webkit-transform: scale(1);
        -ms-transform: scale(1);
        transform: scale(1);
    }

        .back-to-top.show:hover {
            color: #fff;
            bottom: 90px;
            opacity: 1;
        }

.arrow {
    background-image: url(data:image/svg+xml;base64,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);
    position: absolute;
    width: 12px;
    height: 12px;
    background-size: contain;
    transform: rotate(-90deg);
    top: 30%;
    left: 40%;
}

    .arrow:nth-child(2) {
        top: 42%;
    }

@keyframes bounceAlpha {
    0% {
        opacity: 1;
        transform: rotate(-90deg) translateX(0px) scale(1);
    }

    25% {
        opacity: 0;
        transform: rotate(-90deg) translateX(10px) scale(0.9);
    }

    26% {
        opacity: 0;
        transform: rotate(-90deg) translateX(-10px) scale(0.9);
    }

    55% {
        opacity: 1;
        transform: rotate(-90deg) translateX(0px) scale(1);
    }
}

.back-to-top:hover .arrow {
    animation-name: bounceAlpha;
    animation-duration: 1.4s;
    animation-iteration-count: infinite;
    animation-timing-function: linear;
}

    .back-to-top:hover .arrow:nth-child(2) {
        animation-name: bounceAlpha;
        animation-duration: 1.4s;
        animation-delay: 0.2s;
        animation-iteration-count: infinite;
        animation-timing-function: linear;
    }

@media only screen and (max-width: 991px) {
    .back-to-top {
        width: 60px;
        height: 60px;
        line-height: 50px;
    }

        .back-to-top.show {
            bottom: 180px;
            right: 20px;
        }

            .back-to-top.show:hover {
                bottom: 170px;
            }

   /* .arrow {
        top: 27%;
        left: 37%;
    }*/
}
@media only screen and (max-width: 991px) {
    .ContactUsRoundBtn{
        visibility:visible;
    }
}

@media only screen and (min-width: 992px) {
    .ContactUsRoundBtn {
        visibility: hidden;
    }
}