<section class="container">
		    <article class="half">
			        <h1>Azure</h1>
			        <div class="tabs">
				            <span class="tab signin active"><a href="#signin">Sign in</a></span>
				            <span class="tab signup"><a href="#signup">Sign up</a></span>
			        </div>
			        <div class="content">
				            <div class="signin-cont cont">
					                <form action="#" method="post" enctype="multipart/form-data">
						                    <input type="email" name="email" id="email" class="inpt" required="required" placeholder="Your email">
						                    <label for="email">Your email</label>
						                    <input type="password" name="password" id="password" class="inpt" required="required" placeholder="Your password">
                						    <label for="password">Your password</label>
						                    <input type="checkbox" id="remember" class="checkbox" checked>
						                    <label for="remember">Remember me</label>
						                    <div class="submit-wrap">
							                        <input type="submit" value="Sign in" class="submit">
							                        <a href="#" class="more">Forgot your password?</a>
						                    </div>
        					        </form>
    				        </div>
    				        <div class="signup-cont cont">
                <form action="#" method="post" enctype="multipart/form-data">
						                    <input type="name" name="name" id="name" class="inpt" required="required" placeholder="Your name">
						                    <label for="name">Your name</label>
                    <input type="email" name="email" id="email" class="inpt" required="required" placeholder="Your email">
						                    <label for="email">Your email</label>
						                    <input type="password" name="password" id="password" class="inpt" required="required" placeholder="Your password">
                						    <label for="password">Your password</label>
						                    <div class="submit-wrap">
							                        <input type="submit" value="Sign up" class="submit">
							                        <a href="#" class="more">Terms and conditions</a>
						                    </div>
        					        </form>
            </div>
			        </div>
		    </article>
		    <div class="half bg"></div>
	</section>
@import "compass/css3";

@import url(https://fonts.googleapis.com/css?family=Lato:400,700);

$bg: #f8f8f8;
$white: #ffffff;
$blue: #263238;
$grey: #d9d9d9;
$plchldr: #999999;

* {@include box-sizing(border-box); -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; text-rendering: optimizeLegibility;}

@mixin placeholder {
	&::-webkit-input-placeholder {@content;}
	&:-moz-placeholder {@content;}
	&::-moz-placeholder {@content;}
	&:-ms-input-placeholder {@content;}
}
body {
    font-family: 'Lato', sans-serif;
    background-color: $bg;
    .container {
        position: relative;
        overflow: hidden;
        width: 700px;
        height: 500px;
        margin: 80px auto 0;
        background-color: $white;
        @include box-shadow(rgba(0,0,0,.1) 0px 10px 30px);
        .half {
            float: left;
            width: 50%;
            height: 100%;
            padding: 58px 40px 0;
            &.bg {
                //background: url(https://i.imgur.com/J2JddJ4.jpg);
                background-image:url("https://s7.postimg.org/boj7tcxhn/image.jpg");
                background-size: 400px;
                background-repeat: no-repeat;
            }
        }
        h1 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 23px;
            text-align: center;
            text-indent: 6px;
            letter-spacing: 7px;
            text-transform: uppercase;
            color: $blue;
        }
        .tabs {
            width: 100%;
            margin-bottom: 29px;
            border-bottom: 1px solid $grey;
            .tab {
                display: inline-block;
                margin-bottom: -1px;
                padding: 20px 15px 10px;
                cursor: pointer;
                letter-spacing: 0;
                border-bottom: 1px solid $grey;
                @include user-select(none);
                transition: all 0.1s ease-in-out;
                a {
                    font-size: 11px;
                    text-decoration: none;
                    text-transform: uppercase;
                    color: $grey;
                    transition: all 0.1s ease-in-out;
                }
                &.active,&:hover {
                    a {
                        color: $blue;
                    }
                }
                &.active {
                    border-bottom: 1px solid $blue;
                }
            }
        }
        .content {
            form {
                position: relative;
                height: 287px;
            }
            label, input, .more {
                &:first-of-type {
                    @include animation(slideIn 0.4s cubic-bezier(0.37, 0.82, 0.2, 1));
                }
                &:nth-of-type(2) {
                    @include animation(slideIn 0.5s cubic-bezier(0.37, 0.82, 0.2, 1));
                }
                &:nth-of-type(3) {
                    @include animation(slideIn 0.6s cubic-bezier(0.37, 0.82, 0.2, 1));
                }
            }
            label {
                font-size: 12px;
                color: $blue;
                @include user-select(none);
                &:not([for='remember']) {
                    display: none;
                }
            }
            input {
                &.inpt {
                    font-size: 14px;
                    display: block;
                    width: 100%;
                    height: 42px;
                    margin-bottom: 12px;
                    padding: 16px 13px;
                    color: $plchldr;
                    border: 1px solid $grey;
                    background: transparent;
                    @include border-radius(2px);
                    @include placeholder {
                        font-size: 14px;
                        color: $plchldr;
                        font-family: 'Lato', sans-serif;
                    };
                    &:focus {
                        border-color: $plchldr;
                    }
                }
                &.submit {
                    font-size: 12px;
                    line-height: 42px;
                    display: block;
                    width: 100%;
                    height: 42px;
                    cursor: pointer;
                    vertical-align: middle;
                    letter-spacing: 2px;
                    text-transform: uppercase;
                    color: $blue;
                    border: 1px solid $blue;
                    background: transparent;
                    @include border-radius(2px);
                    &:hover {
                        background-color: $blue;
                        color: $white;
                        @include transition(all 0.2s);
                    }
                }
                &:focus {
                    outline: none;
                }
            }
            .checkbox {
                margin-top: 4px;
                overflow: hidden;
                clip: rect(0 0 0 0);
                width: 0; height:0;
                margin: 17px -1px; padding: 0;
                border: 0;
                opacity: 0;
                visibility: hidden;
                & + label {
                    vertical-align: middle;
                    display: inline-block;
                    width: 50%;
                    &:before {
                        content: "\A";
                        color: $plchldr;
                        font-family: Verdana;
                        font-weight: bold;
                        font-size: 8px;
                        line-height: 10px;
                        text-align: center;
                        display: inline-block;
                        vertical-align: middle;
                        position:relative;
                        @include border-radius(2px);
                        background: transparent;
                        border: 1px solid $grey;
                        width: 11px; height: 11px;
                        margin: -2px 8px 0 0;
                    }
                }
                &:checked + label {
                    &:before {
                        content: "✓";
                    }
                }
            }
            .submit-wrap {
                position: absolute;
                bottom: 0;
                width: 100%;
                a {
                    font-size: 12px;
                    display: block;
                    margin-top: 20px;
                    text-align: center;
                    text-decoration: none;
                    color: $plchldr;
                    &:hover {
                        text-decoration: underline;
                    }
                }
            }
            .signup-cont { display: none; }
        }
    }
}
@keyframes slideIn {
    0% {
        @include opacity(0);
        margin-left: -320px;
    }
    100% {
        @include opacity(1);
        margin-left: 0px;
    }
}

@-webkit-keyframes slideIn {
    0% {
        @include opacity(0);
        margin-left: -320px;
    }
    100% {
        @include opacity(1);
        margin-left: 0px;
    }
}

.credits {
    display: block;
    position: absolute;
    right: 0;
    bottom: 0;
    color: $plchldr;
    font-size: 14px;
    margin: 0 10px 10px 0;
    a {
        @include opacity(0.8);
        color: inherit;
        font-weight: 700;
        text-decoration: none;
    }
}
View Compiled
$('.tabs .tab').click(function(){
    if ($(this).hasClass('signin')) {
        $('.tabs .tab').removeClass('active');
        $(this).addClass('active');
        $('.cont').hide();
        $('.signin-cont').show();
    } 
    if ($(this).hasClass('signup')) {
        $('.tabs .tab').removeClass('active');
        $(this).addClass('active');
        $('.cont').hide();
        $('.signup-cont').show();
    }
});
$('.container .bg').mousemove(function(e){
    var amountMovedX = (e.pageX * -1 / 30);
    var amountMovedY = (e.pageY * -1 / 9);
    $(this).css('background-position', amountMovedX + 'px ' + amountMovedY + 'px');
});

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

  1. https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.11.2/jquery-ui.min.js
  2. https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js