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We can make npm packages available for you to use in your JavaScript. We use webpack to prepare them and make them available to import. We'll also process your JavaScript with Babel.

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HTML Settings

Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

            
              <head>
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.8.1/css/all.css" integrity="sha384-50oBUHEmvpQ+1lW4y57PTFmhCaXp0ML5d60M1M7uH2+nqUivzIebhndOJK28anvf" crossorigin="anonymous">
</head>
<body>
	
	<header></header>
	
	<section>
		<div class="container">
			
			<div class="card left">
				
				<div class="face card-front" >
					<div class="signin-form">
						<form action="javascript:void(0);">
							<h2>Sign in</h2>

							<div class="social-container">
								<a href="javascript:void(0);" class="social" id="fb"><i class="fab fa-facebook-f"></i></a>
								<a href="javascript:void(0);" class="social" id="gp"><i class="fab fa-google-plus-g"></i></a>
								<a href="javascript:void(0);" class="social" id="lin"><i class="fab fa-linkedin-in"></i></a>
							</div>

							<span class="formspan">or use your registered account</span>
							<input type="email" placeholder="Email" />
							<input type="password" placeholder="Password" />
							<span class="olspan forgot"><a href="javascript:void(0);">Forgot your password?</a></span>
							<button class="formbtn">Sign in</button>
						</form>
					</div>
				</div>
				
				<div class="face card-back" >
					<div class="panel">
						<h2>Welcome back!</h2>
						<span class="panelspan">To keep connected with us please login with your personal info</span>
						<button class="panelbtn signInBtn">Sign In</button>
					</div>
				</div>
					
			</div>
			
			<div class="card right">
				
				<div class="face card-front" >
					<div class="panel">
						<h2>Hello, Friend!</h2>
						<span class="panelspan">Enter your personal details and start journey with us</span>
						<button class="panelbtn signUpBtn">Sign Up</button>
					</div>
				</div>
				
				<div class="face card-back" >
					<div class="signup-form">
						<form action="javascript:void(0);">
							<h2>Create Account</h2>

							<div class="social-container">
								<a href="javascript:void(0);" class="social" id="fb"><i class="fab fa-facebook-f"></i></a>
								<a href="javascript:void(0);" class="social" id="gp"><i class="fab fa-google-plus-g"></i></a>
								<a href="javascript:void(0);" class="social" id="lin"><i class="fab fa-linkedin-in"></i></a>
							</div>

							<span class="formspan">or use your email for registration</span>
							<input type="email" placeholder="Email" />
							<input type="name" placeholder="Username" />
							<input type="password" placeholder="Password" />
							<button class="formbtn">Sign up</button>
						</form>
					</div>
				</div>
				
			</div>
			
		</div>
	</section>
	
	<footer>
		<div>
			<span>Best viewed in Desktop | Made by <a href="https://codepen.io/hanumaukkadapu/">Hanuma Ukkadapu</a></span>
		</div>
	</footer>
	
	<!-- Scripts -->
	<script src="script.js" ></script>
</body>
            
          
!
            
              @import url('https://fonts.googleapis.com/css?family=Montserrat:400,700|Roboto|Raleway:700');


:root{
	--default-font: 'Roboto';
}
html, body{
	margin: 0;
	padding: 0;
}
body{
	font-family: var(--default-font);
	background: #444;
	perspective: 2500px;
}

header{
	width: 100vw;
	height: 5vh;
}
a{
	text-decoration: none;
	color: #222;
	transition: color 200ms ease-out;
}

.container{
	width: 640px;
	height: 480px;
	margin: auto;
	
	display: flex;
}
.panel, .face, form{
	display: flex;
	flex-direction: column;
	justify-content: center;
	align-items: center;
}
.face, .panel{
	height: 100%;
	width: 100%;
	border-radius: 8px;
}

.card{
	position: relative;
	width: 50%;
	height: 100%;
	transition: transform 500ms ease-in-out;
  transform-style: preserve-3d;
}
.card.flip {
  transform: rotateY(180deg);
}
.face{
	position: absolute;
	background: #EEE;
	text-align: center;
	backface-visibility: hidden;
}
.card-back{
	transform: rotatey(180deg);
}


.panel{
	color: whitesmoke;
	background: #222;
	letter-spacing: 0.03em;
}
.panelspan{
	margin: 5px 25px;
	font-size: 15px;
}
.panelbtn{
	margin-top: 20px;
	background: #222;
	border: 1px solid whitesmoke;
}


.formspan{
	font-size: 14px;
	margin: 5px;
}
.forgot{
	margin: 8px;
}
.formbtn{
	color: #222;
}
#forgotpassword{
	font-size: 15px;
	margin: 8px;
}

/*
.toggle2{
	transform: rotatey(-180deg);
}
*/

input{
	display: block;
	margin: 6px;
	padding: 8px 10px;
	width: 110%;
	background: #DDD;
	border: 1.5px solid #DDD;
	border-radius: 6px;
	transition: border 250ms ease-out; 
}
input:hover, input:focus{
	outline: none;
	border: 1.5px solid black;
}
/* Placeholders */
::placeholder { /* Firefox, Chrome, Opera */
	letter-spacing: 0.02em;
	color: rgba(70,70,70,1); 
}

button{
	cursor: pointer;
	width: 140px;
	padding: 10px;
	margin: 5px;
	color: whitesmoke;
	background: #DDD;
	border: none;
	border-radius: 25px;
	font-family: 'Raleway';
	letter-spacing: 0.02em;
	text-transform: uppercase;
	transition: color 200ms ease-out, background 200ms ease-out;
}
button:hover, button:focus{
	outline: none;
}
button:hover, button:active{
	background: #222;
	color: whitesmoke;
}

h2{
	font-family: 'Montserrat';
	font-weight: bold;
	font-size: 1.7em;
}


.social-container{
	display: flex;
	flex-direction: row;
	justify-content: center;
	align-items: center;
}
.social-container a{
	width: 25px;
	height: 25px;
	margin: 5px;
	padding: 10px;
	color: #222;
	background: #DDD;
	border-radius: 25px;
	
	display: flex;
	justify-content: center;
	align-items: center;
	transition: border 200ms ease-out, background 200ms ease-out, color 200ms ease-out;
}
.social-container a:hover{
	border-color: black;
	background: #222;
	color: whitesmoke;
}
/*
a[id="fb"]:hover{
	background:  #3b5998;
}
a[id="gp"]:hover{
	background:  #dd4b39;
}
a[id="lin"]:hover{
	background:  #0077b5;
}
*/

footer{
	position: relative;
	bottom: -40px;
	width: 100%;
	height: 30px;
	color: #DDD;
	
	display: flex;
	justify-content: center;
	align-items: center;
}
footer a{
	color: #DDD;
	display: inline-block;
	transition: color 250ms ease-out, transform 250ms ease-out;
}
footer a:hover{
	filter: drop-shadow(2px 2px 5px rgba(0,0,0,0.5));
	transform: scale(1.04);
	color: #AAA;
}
            
          
!
            
              var left = document.querySelector('.left');
var right = document.querySelector('.right');
var signUp = document.querySelector('.signUpBtn');
var signIn = document.querySelector('.signInBtn');
signUp.addEventListener( 'click', function() {
  left.classList.add('flip');
	right.classList.add('flip');
});
signIn.addEventListener( 'click', function() {
  left.classList.remove('flip');
	right.classList.remove('flip');
});
            
          
!
999px
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