.flatpickr-calendar {
    z-index: 99999 !important;
}


.input-group > .btn:not(.dropdown-toggle) {

    min-height: 0; /* remove any inherited min-height */
    display: flex;
    align-items: center;
    justify-content: center; /* center the icon horizontally */
    padding: 0 0.75rem; /* optional horizontal padding */
    line-height: 1; /* remove extra spacing from font */
    transform: none;
}

.input-group > .btn:not(.dropdown-toggle):active {
    transform: none !important;
}