JSFiddle - React, Tailwind, and code Playground

HTML

<html>
<head>
    <title>clone</title>
</head>
<body>
    <form action="">
        <div class="test">
            <label for="name">Name</label>
            <input type="text" name="name">
            <label for="email">Email</label>
            <input type="text" name="email">
            <label for="message">Message</label>
            <textarea name="message"></textarea>
        </div>
        <a href="#" class="add_input">Add more</a>
    </form>
</body>
</html>

CSS

label {display: block;}

JavaScript

(function(){

    var input = $('.test').clone();
    
    $('a.add_input').on('click', function(e){
    
        $(this).before(input);
        
        e.preventDefault();
        
    });
    
})();