/****** FILE: frontend/css/upcoming-events.css *****/
select:invalid {
    height: 0px !important;
    opacity: 0 !important;
    position: absolute !important;
    display: inline-block !important;
}
  
select:invalid[multiple] {
    margin-top: 15px !important;
}

select:invalid:focus + .chosen-container {
    border: 1px solid #cc0000;
}