.UIBackTopTopControl:hover {
      cursor: pointer;
    background-color: rgb(255 255 255 / 90%);
    color:#017744;
}
.UIBackTopTopControl {
    cursor: pointer;
    position: fixed;
    bottom: 10px;
    right: 35px;
    background-color: #017744;
    z-index: 10;
    width: 48px;
    height: 48px;
    border-radius:1000px;
    color:#fff;
    font: normal normal normal 25px/46px FontAwesome;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-align: center;
    border: 1px solid #ffffff7a;
}
.UIBackTopTopControl:before {
    content: "\f106";
}