.ui-datepicker {width: 280px; background-color: #fff; padding:0;}
.ui-datepicker select.ui-datepicker-year,
.ui-datepicker select.ui-datepicker-month {width: 32%;}

.ui-datepicker .ui-datepicker-title select {font-size: 13px; margin: 1px 0 1px 5px;}
.ui-datepicker .ui-widget-header {border: 1px solid #dddddd; background: #e9e9e9; color: #333333; font-weight: 700;}

.ui-widget-content .ui-state-default {border: 0px; text-align: center; background: #fff; font-weight: bold; color: #000;}
.ui-widget-content .ui-state-default:hover {border: 0px; text-align: center; background: #000; color: #fff; }
.ui-widget-content .ui-state-active {border: 0px; background: #616eff; color: #fff;}

.ui-datepicker-calendar > tbody td.ui-datepicker-week-end:first-child a {color: red;}
.ui-datepicker-calendar > tbody td.ui-datepicker-week-end:last-child a {color: red;}