JSFiddle - React, Tailwind, and code Playground

HTML

<html>
    <head>
    </head>
    <body>
        <div id="plans"> some stuff</div>
        <div id="mainnavbottom"> 
            // some other stuff that I want to 
            // keep showing if users hover over it 
        </div>
    </body>
</html>

JavaScript

$("#plans").hover(
        function() {
            $("#mainnavbottom").show("fast");
        },
        function() {
           $("#mainnavbottom").hide("slow");
        }
    );