.to-top-button {
    display: none;
    position: fixed;
    bottom: 15px;
    right: 0px;
    z-index: 99;
    background-color: #5FA202;
    color: #ffffff;
    border-top-left-radius: 3px;
    border-bottom-left-radius: 3px;
    height: 40px;
    width: 40px;
    border: none;
    /*box-shadow: 0px 3px 5px -1px rgba(0, 0, 0, 0.2), 0px 6px 10px 0px rgba(0, 0, 0, 0.14), 0px 1px 18px 0px rgba(0, 0, 0, 0.12);*/
    cursor: pointer;
}