JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.11.4/jquery-ui.min.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.0.0-alpha/css/bootstrap.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.11.4/jquery-ui.min.js"></script>
<div class="col-xs-12 col-sm-6 col-md-6">
    <label>Total work experience</label>
    <label class="years_lab" id="txt_expy">Years</label>
    <label class="years_lab" id="txt_expm">Months</label>
</div>    
<div id="expy" class="wrk_exp cloned-row3">
    <div class="row">
        <div class="col-xs-6 col-sm-6 col-md-3 col-lg-3">
            <label><span class="required-star-black">*</span>Job Title</label>
            <br/>
            <input type="text" class="ipt_Field" id="txt_Jbt" name="txt_Jbt"/>
        </div>
        <div class="col-xs-6 col-sm-6 col-md-3 col-lg-3">
            <label><span class="required-star-black">*</span>Employer</label>
            <br/>
            <input type="text" class="ipt_Field" id="txt_Empl" name="txt_Empl" />
        </div>
        <div class="col-xs-6 col-sm-3 col-md-3 col-lg-3">
            <label><span class="required-star-black">*</span>From Date</label>
            <br/>
            <div class="input-group">
                <input type="text" placeholder="MM/DD/YYYY" class="ipt_Field datepicker startDate" id="txt_Fdob" name="txt_Fdob" />
                <p class="form-control-feedback"><i class="fa fa-calendar  custom-mar"></i></p>
            </div>
        </div>
        <div class="col-xs-6 col-sm-3 col-md-3 col-lg-3">
            <label><span class="required-star-black">*</span>To Date</label>
            <br/>
            <div class="input-group">
                <input type="text" placeholder="MM/DD/YYYY" class="ipt_Field endDate datepicker" id="txt_Tdob" name="txt_Tdob" />
                <p class="form-control-feedback"><i class="fa fa-calendar  custom-mar"></i></p>
            </div>
       ...

JavaScript

var diffDays=0;
        $(".cloned-row3").find(".datepicker").removeClass('hasDatepicker').datepicker({
        dateFormat: "mm-dd-yy",
        changeMonth: true,
        yearRange: "-100:+0",
        changeYear: true,
        maxDate: new Date(),
        showButtonPanel: false,
        beforeShow: function () {
            setTimeout(function (){
            $('.ui-datepicker').css('z-index', 99999999999999);

            }, 0);
        }
        
    });
var count=0;
        $(document).on("click", ".exp_add_button", function () { 	            
            var $clone = $('.cloned-row3:eq(0)').clone(true,true);
            $clone.find('[id]').each(function(){this.id+='someotherpart'});
            $clone.find('.btn_more').after("<input type='button' class='btn_less1 selbtnless' id='buttonless'/>")
            $clone.attr('id', "added"+(++count));
            $clone.find(".startDate").val('');
            $clone.find(".endDate").val('');
            /*$clone.find(".degree_Description").attr('disabled', true).val('');*/
            $clone.find("input.startDate")
              .removeClass('hasDatepicker')
              .removeData('datepicker')
              .unbind()
              .datepicker({
                dateFormat: "mm-dd-yy",
                changeMonth: true,
                yearRange: "-100:+0",
                changeYear: true,
                maxDate: new Date(),
                showButtonPanel: false,
                beforeShow: function () {
                    setTimeout(function (){
                    $('.ui-datepicker').css('z-index', 99999999999999);

                    }, 0);
                }
            });
            $clone.find("input.endDate")
              .removeClass('hasDatepicker')
              .removeData('datepicker')
              .unbind()
              .datepicker({
                dateFormat: "mm-dd-yy",
                changeMonth: true,
                yearRange: "-100:+0",
                changeYear: true,
               ...