JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>

<a href="index.html" class="active" id="signin">Identificare</a>
<div id="main">
				<!-- Create div first for Login Form-->
					<div id="first">
						<form action="" method="post">
							<input type="text" id="loginemail" placeholder="Email" />
							<input type="password" id="loginpassword" placeholder="Parola" />
							<input type="button" id="login" value="Logare" />
						</form>	
					 </div>
				<!-- /Create div first for Login Form-->
				</div>

CSS

#main { 
	position: absolute;
    margin-top: 15px;
    float: right;
    z-index: 200;
}

#first { 
	width: 120px;
    height: 10px;
    margin-top: -110px;
    padding: 29px 22px;
    background-color: white;
    border: 1px solid black;
    border-radius: 5pz;
    position: absolute;
    left: 50%;
    margin-left: 1070px;
    top: 0px; 
	display:none;
}
 
h3 {
	margin-top: 0;
}
 
#loginemail,#loginpassword { 
	padding: 5px;
    width: 55%;
    height: 15px;
    margin-top: -21px;
    font-size: 8px;
	border: 1px solid #e3e3e3;
    border-radius: 0;
    background: #fff;
    font-size: 10px;
    line-height: 15px;
    color: #333;
    -ms-box-sizing: border-box;
    box-sizing: border-box;
    -moz-box-sizing: border-box;
}
#loginpassword{
	margin-top: 10px;
	padding: 9px 10px;
  
}

#login{
	background: linear-gradient(to bottom, #22abe9 5%, #36caf0 100%);
    box-shadow: inset 0px 1px 0px 0px #7bdcf4;
    border: 1px solid #0F799E;
    color: #ffffff;
    width: 58px;
    height: 15px;
    margin-top: 0px;
    margin-left: 85px;
    font-size: 9px;
    font-weight: bold;
    cursor: pointer;
    text-shadow: 0px 1px 0px #13506D;
}

#login:hover{
	background: linear-gradient(to bottom, #36caf0 5%, #22abe9 100%);
}

a {
	text-decoration: none; 
	color: cornflowerblue;
}

p#two { 
	margin-bottom:0; 
}

JavaScript

$(document).ready(function(){
	// on click signin It Hide Registration Form and Display Login Form
     $("#signin").click(function(){
	      $("#first").show("block");
	 });	 
});