.ui-datepicker {
    width: 16em !important;
}

.ui-widget {
    font-size: 14px;
}

.ui-datepicker th {
    padding: .5em .2em;
    text-align: center;
    font-weight: bold;
    border: 0;
    border-right-color: currentcolor;
    border-right-style: none;
    border-right-width: 0px;
    font-size:15px;
}

.ui-datepicker td a, .ui-datepicker td span {
    padding: 0 .2em;
}

.ui-datepicker td {
    line-height:22px;
}

.ui-datepicker tbody tr:nth-of-type(2n) {
    background: #ddd !important;
}