JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://code.jquery.com/jquery-3.2.1.min.js"></script>
<div style="padding-bottom:2000px;">
  <div style="height:4800px;"></div>
  <a id="anchor">Anchor</a>
</div>

JavaScript

var hash='#anchor';
  $(function(){
    if(hash.length){
      var target=$('[name="'+hash.substr(1)+'"]');
      if(!target.length)
        target=$(hash);

      if(target.length)
        $('html,body').animate({
          scrollTop:target.offset().top
        },300);
    };
  });