/*************
 * separator *
 *************/
sidebar.view.separator,
view.separator,
separator {
    border-width: 0;
    border-style: none;
    background-color: transparent;
}
separator:disabled {
    background-color: transparent;
}
button separator,
button.separator {
    border-width: 0;
    background-color: transparent;
}

button separator:disabled,
button.separator:disabled {
    background-color: transparent;
    border-width: 0;
}