#wpadminbar #wp-admin-bar-employees .ab-icon:before {
    content: '\f110';
    top: 3px;
}

#wpadminbar #wp-admin-bar-manager-help-front .ab-icon:before {
    content: '\f223';
    top: 3px;
}

#wpadminbar #wp-admin-bar-employees_iob_front .ab-icon:before {
    content: '\f115';
    top: 3px;
}