JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" id="edit-submitted-first-name" />

JavaScript

$(document).ready(function(){ 
    $("#edit-submitted-first-name").focus(function(){ 
        if(this.value=='First Name') this.value = '';
    }); 
    $("#edit-submitted-first-name").blur(function(){ 
        if (this.value=='') this.value = 'First Name';
    }); 
});