JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" id="dtp1">
<input type="text" id="dtp2">

JavaScript

$(function () {
    $("#dtp1").datepicker({
    minDate:"null",
    maxDate:0,
    
        changeMonth: true,
        changeYear: true,
        showButtonPanel: true,
        dateFormat: 'mm/yy',
     
    });
});

$(function () {
    $("#dtp2").datepicker({
        changeMonth: true,
        changeYear: true,
        showButtonPanel: true,
        dateFormat: 'mm/yy',
        onClose: function (selectedDate, dateText, inst) {
             $( "#dtp1" ).datepicker( "option", "maxDate", selectedDate );
            var month = $("#ui-datepicker-div .ui-datepicker-month :selected").val();
            var year = $("#ui-datepicker-div .ui-datepicker-year :selected").val();
            $(this).datepicker('setDate', new Date(year, month, 1));
        }
    });
});