JSFiddle - React, Tailwind, and code Playground

HTML

<a href="#1">internal link222</a>
<a href = "http://google.com">Google</a>

<a name="1"><a><h3 id="1">1</h3>

JavaScript

$(function() {
    $("a[href^='#']").click(
    function()
        {
            var $id = $(this).attr("href");
            $($id).css("background-color","#cc7733");  
            $($id).animate({ backgroundColor: "#fff" }, "slow");  
            
        }
    );
    
});