.gwt-TabPanel .gwt-TabBarItem {
    margin-left: 6px;
    padding: 3px 8px 3px 8px;
    cursor: pointer;
    cursor: hand;
    color: white;
    font-size: 1.2em;
    color: #8bc53d;
    text-align: center;
    background-color: rgba(0,0,0,0.7);
    border-radius: 5px 5px 0px 0px;
}
.gwt-TabPanel .gwt-TabBarItem-selected {
    cursor: default;
    background-color: rgba(0,0,0,0.4);
    font-size: 1.2em;
    color: #FFFFFF;
}