newsupernova/app/code/Smartwave/Dailydeals/view/adminhtml/web/js/style.css

.chosen-container-single .chosen-single {
    background: #fff;
    border-radius: 0;
    box-shadow: none;
    height: 33px;
    line-height: 31px;
}
.chosen-container-active.chosen-with-drop .chosen-single {
    background: #fff;
}
.chosen-container-active.chosen-with-drop .chosen-single div b {
    background-position: -18px 7px;
}
.chosen-container-single .chosen-single div b {
    background-position: 0px 6px;
}