.sticky-button-3 {
    border: solid 1px;
    width: 60px;
    height: 60px;
    position: fixed;
    right: 0;
    top: 50%;
    margin-top: 158px;
    border-radius: 100%;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
}