JSFiddle - React, Tailwind, and code Playground

HTML

<script type="text/javascript">
    $(function() {
       $(window).bind('blur', function() {
         $("input.focus:last").focus();  
       }).trigger('blur'); //run straight away
    });
</script>
<input type="button" name="counter1" size="10" class="focus" value="button1">
<input type="button" name="counter2" size="10" class="focus" value="button2">