.scroll-top-button {
    position: fixed;
    opacity: 0;
    visibility: hidden;
    overflow: hidden;
    text-align: center;
    z-index: 99999999;
    background-image: url("../images/scroll-top-default.png");
    background-position: center center;
    -moz-border-radius: 50%;
    -webkit-border-radius: 50%;
    border-radius: 50%;
    color: #eeeeee;
    width: 50px;
    height: 50px;
    right: 7vw;
    bottom: 17vh;
    -webkit-transition: all 0.5s ease-in-out;
    -moz-transition: all 0.5s ease-in-out;
    transition: all 0.5s ease-in-out;
}

    .scroll-top-button:hover {
        opacity: 1 !important;
        
    }

    .scroll-top-button.show {
        visibility: visible;
        cursor: pointer;
        opacity: 0.4;
    }