JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/themes/dot-luv/jquery-ui.css">
<div class="demo">

<div id="slider"></div>

    <div class='rsize'></div>
</div><!-- End demo -->

JavaScript

$("#slider").slider({
  min: 0,
  max: 24, // max is 24
  step: 2,
  slide: function(event, ui) {
    var s = ui.value;
    switch(ui.value) {
       case 20:
         s = '16W';
         break;
       case 22:
         s = '18W';
         break;
       case 24:
         s = '12W';
         break;
    }
    $(".rsize").text(s);
  }
});