Notes

body{
margin:0;
color:#6a6f8c;
background:#c8c8c8;
font:600 16px/18px 'Open Sans',sans-serif;
}
*,:after,:before{box-sizing:border-box}
.clearfix:after,.clearfix:before{content:'';display:table}
.clearfix:after{clear:both;display:block}
a{color:inherit;text-decoration:none}

.login-wrap{
width:100%;
margin:auto;
max-width:525px;
min-height:670px;
position:relative;
background background-image:"bg.jpg" no-repeat center;
box-shadow:0 12px 15px 0 rgba(0,0,0,.24),0 17px 50px 0 rgba(0,0,0,.19);
}
.login-html{
width:100%;
height:100%;
position:absolute;
padding:90px 70px 50px 70px;
background:rgba(40,57,101,.9);
}
.login-html .sign-in-htm,
.login-html .sign-up-htm{
top:0;
left:0;
right:0;
bottom:0;
position:absolute;
transform:rotateY(180deg);
backface-visibility:hidden;
transition:all .4s linear;
}
.login-html .sign-in,
.login-html .sign-up,
.login-form .group .check{
display:none;
}
.login-html .tab,
.login-form .group .label,
.login-form .group .button{
text-transform:uppercase;
}
.login-html .tab{
font-size:22px;
margin-right:15px;
padding-bottom:5px;
margin:0 15px 10px 0;
display:inline-block;
border-bottom:2px solid transparent;
}
.login-html .sign-in:checked + .tab,
.login-html .sign-up:checked + .tab{
color:#fff;
border-color:#1161ee;
}
.login-form{
min-height:345px;
position:relative;
perspective:1000px;
transform-style:preserve-3d;
}
.login-form .group{
margin-bottom:15px;
}
.login-form .group .label,
.login-form .group .input,
.login-form .group .button{
width:100%;
color:#fff;
display:block;
}
.login-form .group .input,
.login-form .group .button{
border:none;
padding:15px 20px;
border-radius:25px;
background:rgba(255,255,255,.1);
}
.login-form .group input[data-type="password"]{
text-security:circle;
-webkit-text-security:circle;
}
.login-form .group .label{
color:#aaa;
font-size:12px;
}
.login-form .group .button{
background:#1161ee;
}
.login-form .group label .icon{
width:15px;
height:15px;
border-radius:2px;
position:relative;
display:inline-block;
background:rgba(255,255,255,.1);
}
.login-form .group label .icon:before,
.login-form .group label .icon:after{
content:'';
width:10px;
height:2px;
background:#fff;
position:absolute;
transition:all .2s ease-in-out 0s;
}
.login-form .group label .icon:before{
left:3px;
width:5px;
bottom:6px;
transform:scale(0) rotate(0);
}
.login-form .group label .icon:after{
top:6px;
right:0;
transform:scale(0) rotate(0);
}
.login-form .group .check:checked + label{
color:#fff;
}
.login-form .group .check:checked + label .icon{
background:#1161ee;
}
.login-form .group .check:checked + label .icon:before{
transform:scale(1) rotate(45deg);
}
.login-form .group .check:checked + label .icon:after{
transform:scale(1) rotate(-45deg);
}
.login-html .sign-in:checked + .tab + .sign-up + .tab + .login-form .sign-in-htm{
transform:rotate(0);
}
.login-html .sign-up:checked + .tab + .login-form .sign-up-htm{
transform:rotate(0);
}

.hr{
height:2px;
margin:60px 0 50px 0;
background:rgba(255,255,255,.2);
}
.foot-lnk{
text-align:center;
}





HTML


<link rel="stylesheet" type="text/css" href="first.css">
<link rel="script" href="main.js">
<div class="login-wrap">
<div class="login-html">
<input id="tab-1" type="radio" name="tab" class="sign-in" checked><label for="tab-1" class="tab">Sign In</label>
<input id="tab-2" type="radio" name="tab" class="sign-up"><label for="tab-2" class="tab">Sign Up</label>
<div class="login-form">
<div class="sign-in-htm">
<div class="group">
<label for="user" class="label">Username</label>
<input id="user" type="text" class="input">
</div>
<div class="group">
<label for="pass" class="label">Password</label>
<input id="pass" type="password" class="input" data-type="password">
</div>
<div class="group">
<input id="check" type="checkbox" class="check" checked>
<label for="check"><span class="icon"></span> Keep me Signed in</label>
</div>
<div class="group">
<input type="submit" class="button" value="Sign In">
</div>
<div class="hr"></div>
<div class="foot-lnk">
<a href="#forgot" "mailto:[email protected]?Subject=Hello%20again">Forgot Password?</a>
</div>
</div>
<div class="sign-up-htm">
<div class="group">
<label for="user" class="label">Username</label>
<input id="user" type="text" class="input">
</div>
<div class="group">
<label for="pass" class="label">Password</label>
<input id="pass" type="password" class="input" data-type="password">
</div>
<div class="group">
<label for="pass" class="label">Repeat Password</label>
<input id="pass" type="password" class="input" data-type="password">
</div>
<div class="group">
<label for="pass" class="label">Email Address</label>
<input id="pass" type="text" class="input">
</div>
<div class="group">
<input type="submit" class="button" value="Sign Up">
</div>
<div class="hr"></div>
<div class="foot-lnk">
<label for="tab-1">Already Member?</a>
</div>
</div>
</div>
</div>
</div>