JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" id="abcd" maxlength="2"class="intValidate""/>

CSS

input { width: 100px }

JavaScript

$('.intValidate').live('keydown', function(event) {   
      if ((event.keyCode != 8) 
       && (event.keyCode != 9)
       && (event.keyCode != 37)
       &&(event.keyCode != 39) 
       &&(event.keyCode != 46)
       &&(event.which < 48 || event.which > 57)) {            
             event.preventDefault();

      }
 });