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HTML

              
                <div id="app"></div>
              
            
!

CSS

              
                // Fonts
@import 'https://fonts.googleapis.com/css?family=Lato:100,300,400,700,900';

// Variables
$font: 'Lato', sans-serif;

// Colors
$onyx: #3E363F;
$cinnabar: #DD403A;
$cosmiclatte: #FFFCE8;

// Styles
body {
	background-image: url(https://unsplash.it/1400/799);
	background-position: center;
	background-repeat: no-repeat;
	background-size: cover;
	color: $onyx;
	font-family: $font;
	height: 100vh;
	overflow: hidden;
}

.App {
	align-items: center;
	display: flex;
	height: 100vh;
	justify-content: center;
	width: 100vw;
	position: absolute;
	top: 0; left: 0;
}

.Modal {
	background: $onyx;
	border-radius: 2px;
	padding: 20px;
	width: 200px;
}

// Inputs
.Input {
	display: flex;
	flex-direction: row-reverse;
	border-bottom: 1px solid rgba($cosmiclatte, .1);
	padding-bottom: 3px;
	margin-bottom: 5px;
	
	input {
		// General styles
		outline: none;
		border: 0;
		color: $cosmiclatte;
		background: transparent;
		font-family: $font;
		flex: 1 0 auto;
		font-size: 14px;
		font-weight: 300;
		
		// Animation triggers
		&:focus ~ label {
			opacity: 1;
		}
		
		// Icon abstractions
		&[type='text'] {
			~ label {
				&::before {
					content: "\f007";	
				}
			}
		}
		&[type='email'] {
			~ label {
				&::before {
					content: "\f1fa";
				}
			}
		}
		&[type='password'] {
			~ label {
				&::before {
					content: "\f023";	
				}
			}
		}
	}
	
	label {
		font-family: FontAwesome;
		font-size: 13px;
		opacity: .1;
		transition: opacity .5s ease;
		
		&::before {
			align-items: center;
			color: $cosmiclatte;
			display: flex;
			height: 30px;
			justify-content: center;
			width: 30px;
		}
	}
}

// Button
button {
	align-items: center;
	background: $cinnabar;
	border: 0;
	border-radius: 3px;
	color: white;
	display: flex;
	
	font-family: $font;
	font-size: 13px;
	font-weight: 500;
	justify-content: center;
	margin-top: 20px;
	outline: none;
	padding: 10px 9px 10px 11px;
	text-transform: uppercase;
	width: 100%;
	
	.fa {
		font-size: 12px;
		margin-left: auto;
		position: relative;
		top: 1px;
	}
	
	&:hover {
		transform: scale(1.02);
	}
	
	&:active {
		transform: scale(.99);
	}
}

// Animation Classes
.example-enter {
	margin-top: 30px;
	opacity: .01;
	
	&.example-enter-active {
		margin-top: 0px;
		opacity: 1;
		transition: opacity .5s ease, margin .5s ease;
	}
}

.example-leave {
	margin-top: 0px;	
	opacity: 1;
	
	&.example-leave-active {
		margin-top: -30px;
		opacity: .01;
		transition: opacity .3s ease, margin .5s ease;
	}
}
              
            
!

JS

              
                var ReactCSSTransitionGroup = React.addons.CSSTransitionGroup;

var Input = React.createClass({
	render: function() {
		return (
			<div className="Input">
				<input id={this.props.name} autocomplete="false" required type={this.props.type} placeholder={this.props.placeholder} />	
				<label for={this.props.name}></label>
			</div>
		);
	}
});

var Modal = React.createClass({
	render: function() {
		return (
			<div className="Modal">
				<form onSubmit={this.props.onSubmit} className="ModalForm">
					<Input id="name" type="text" placeholder="Jack-Edward Oliver" />
					<Input id="username" type="email" placeholder="mrjackolai@gmail.com" />
					<Input id="password" type="password" placeholder="password" />
					<button>Log in <i className="fa fa-fw fa-chevron-right"></i></button>
				</form>
			</div>
		);
	}
});

var App = React.createClass({
	
	getInitialState: function() {
		return { mounted: false };
	},
	
	componentDidMount: function() {
		this.setState({ mounted: true });
	},
	
	handleSubmit: function(e) {
		this.setState({ mounted: false });
		e.preventDefault();
	},

	render: function() {
		
		var child;
		if(this.state.mounted) {
			child = (<Modal onSubmit={this.handleSubmit} />);
		}
		
		return(
			<div className="App">
				<ReactCSSTransitionGroup transitionName="example" transitionEnterTimeout={500} transitionLeaveTimeout={300}>
					{child}
				</ReactCSSTransitionGroup>
			</div>
		);
	}
});

ReactDOM.render(
	<App />,
	document.getElementById('app')
);
              
            
!
999px

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