#cs-icon {
    background: transparent;
    outline: 0;
    border: 0;
    cursor: pointer;
    position: fixed;
    z-index: 999;
    bottom: 10px;
    left: 5px;
}

@media (max-width: 575.98px) {
    #cs-icon {
        left: 10px;
        bottom: 80px;
    }
}