.ui-widget {
    font-size: 12px;
}
.ui-accordion-header-active, td.ui-datepicker-current-day, td.ui-datepicker-current-day a.ui-state-active, .ui-progressbar-value, .ui-slider-range {
    color: #fff;
    background-color: #444;
    background-image: none;
    background-image: -moz-linear-gradient(top, #666, #444);
    background-image: -ms-linear-gradient(top, #666, #444);
    background-image: -o-linear-gradient(top, #666, #444);
    background-image: -webkit-gradient(linear, center top, center bottom, from(#666), to(#444));
    background-image: -webkit-linear-gradient(top, #666, #444);
    background-image: linear-gradient(top, #666, #444);
}
.ui-accordion-header, .ui-tabs-nav li a, td.ui-datepicker-current-day a.ui-state-active { 
    font-weight: bold; 
}