Transparent taskbar Linux Mint

/*/usr/share/themes/Linux Mint/cinnamon/cinnamon.css*/

#panel {
    color: #ffffff;
    background-gradient-start: rgba(0,0,0,0);
    background-gradient-end: rgba(0,0,0,0);
    background-gradient: vertical;
    font-size: 9pt;
    font-weight: normal;
    height: 27px;
    width: 32px;
    box-shadow: 0px rgba(0,0,0,0);
    background-color: rgba(175,175,175,0.05);
}