JSFiddle - React, Tailwind, and code Playground

HTML

<div id="right">click</div>
<div id="signin">
    <form>
	    <input type="text" name="username" placeholder="Username" required>
	    <input type="password" name="password" placeholder="Password" required>
	    <input type="submit" name="button" value="Sign in">
    </form>
</div>

CSS

#signin{display:none}

JavaScript

$("#right").click(function() {
    $("#signin").slideToggle(300);
});