JSFiddle - React, Tailwind, and code Playground

HTML

<fieldset id="contact_form">
    <div id="msgs"><p>Or by e-mail</p></div>
    <form id="cform" name="cform" method="post">
        <input type="text" id="name" name="name" value="Full Name*">
            <input type="text" id="email" name="email" value="Email Address*">
                <input type="text" id="subject" name="subject" value="Subject*">
                    <textarea id="msg" name="message">Your Message*</textarea>
                    <button id="submit" class="dugme">Send</button>
                </form>	
            </fieldset>

JavaScript

$('#name').on('focus', function(){
	$(this).val('').on('blur', function(){$(this).val('Full Name*')});
});
$('#email').on('focus', function(){
	$(this).val('').on('blur', function(){$(this).val('Email Address*')});
});
$('#subject').on('focus', function(){
	$(this).val('').on('blur', function(){$(this).val('Subject*')});
});
$('#msg').on('focus', function(){
	$(this).val('').on('blur', function(){$(this).val('Your Message*')});
});