#backtotop { 
    bottom: 130px;
    width: 103px;
    text-indent: inherit;
    padding-top: 95px;
    font-size: 16px;
    font-weight: 400;
    line-height: 19.2px;
    background: url("data:image/svg+xml,%3Csvg width='64' height='64' viewBox='0 0 64 64' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='32' cy='32' r='32' fill='%234F4F4F'/%3E%3Cpath d='M45.3333 31.9998C45.3333 35.5361 43.9285 38.9274 41.4281 41.4279C38.9276 43.9284 35.5362 45.3332 32 45.3332C30.249 45.3332 28.5152 44.9883 26.8975 44.3182C25.2798 43.6482 23.81 42.666 22.5719 41.4279C20.0714 38.9274 18.6666 35.5361 18.6666 31.9998C18.6666 28.4636 20.0714 25.0722 22.5719 22.5717C25.0724 20.0713 28.4637 18.6665 32 18.6665C33.7509 18.6665 35.4847 19.0114 37.1024 19.6814C38.7201 20.3515 40.1899 21.3336 41.4281 22.5717C42.6662 23.8099 43.6483 25.2797 44.3184 26.8974C44.9884 28.5151 45.3333 30.2489 45.3333 31.9998ZM25.8666 36.5332L32 30.3998L38.1333 36.5332L40 34.6665L32 26.6665L24 34.6665L25.8666 36.5332Z' fill='white'/%3E%3C/svg%3E") no-repeat center center;
}

@media screen and (max-width: 600px) {
    #backtotop {
        font-size: 0px;
        width: 66px;
    }
}