Pen Settings

HTML

CSS

CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URLs added here will be added as <link>s in order, and before the CSS in the editor. You can use the CSS from another Pen by using its URL and the proper URL extension.

+ add another resource

JavaScript

Babel includes JSX processing.

Add External Scripts/Pens

Any URL's added here will be added as <script>s in order, and run before the JavaScript in the editor. You can use the URL of any other Pen and it will include the JavaScript from that Pen.

+ add another resource

Packages

Add Packages

Search for and use JavaScript packages from npm here. By selecting a package, an import statement will be added to the top of the JavaScript editor for this package.

Behavior

Auto Save

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

Format on Save

If enabled, your code will be formatted when you actively save your Pen. Note: your code becomes un-folded during formatting.

Editor Settings

Code Indentation

Want to change your Syntax Highlighting theme, Fonts and more?

Visit your global Editor Settings.

HTML

              
                <div class="container">
    <div class="bg-img"></div>
    <div class="header">
        <div class="loading">
            <div class="block"></div>
            <div class="block"></div>
            <div class="block"></div>
            <div class="block"></div>
        </div>
        <h1>Go!</h1>
    </div>
    <div class="main">
        <div class="login">
            <form>
                <input id="username" name="username" required="required" type="text" placeholder="Username" />
                <input id="password" name="password" required="required" type="password" placeholder="Password" />
                <button type="submit" value="Login" />Login</button>
                <span class="form-toggle">Not Registered Yet?</span>
            </form>
        </div>
        <div class="register">
            <form>
                <input id="firstname" name="firstname" required="required" type="text" placeholder="First name" />
                <input id="lastname" name="lastname" required="required" type="text" placeholder="Last name" />
                <input id="email" name="email" required="required" type="enail" placeholder="Email" />
                <input id="username" name="username" required="required" type="text" placeholder="Username" />
                <input id="password" name="password" required="required" type="password" placeholder="Password" />
                <button type="submit" value="Login" />Register</button>
                <span class="form-toggle">Return to Login</span>
            </form>
        </div>
    </div>
    <div class="footer">
        <ul class="footer-nav">
            <li class="link">FAQ</li>
            <li class="link">About Us</li>
            <li class="link">Contact Us</li>
            <li class="link">Privacy Policy</li>
        </ul>
      <p class="disclaimer"><b>Disclaimer</b> Every effort is made to keep the website up and running smoothly. However, we takes no responsibility for, and will not be liable for, the website being temporarily unavailable due to technical issues beyond our control.</p>
    </div>
</div>

              
            
!

CSS

              
                @import "compass/css3";

@import url(https://fonts.googleapis.com/css?family=Open+Sans+Condensed:300);
* {
  font-family: 'Open Sans Condensed', sans-serif;
  color:#464646;
  transition: all 1.5s linear;
  overflow:hidden !important; box-sizing:border-box; }

.container {
  width:100%;
  height:100%;
  .bg-img {
    position: fixed; 
    top: -50%; 
    left: -50%; 
    width: 200%; 
    height: 200%;
    opacity:0;
    filter: blur(5px);
    transform: scale(1.5);
    img {
      position: absolute; 
      top: 0; 
      left: 0; 
      right: 0; 
      bottom: 0; 
      margin: auto; 
      min-width: 50%;
      min-height: 50%;
    }
  }
}

.header {
  position:absolute;
  width:100%;
  height:100%;
  background-color:#464646; 
  display:table;
  text-align:center;
  color:#e2e8e7;
  z-index:10;
  h1 {
    display: table-cell;
    text-align: center;
    vertical-align: middle;
    font-size:72px;
    z-index: 2;
    position: relative;
    color:#E2E8E7;
  }
}
.main {
  position:absolute;
  width:100%;
  height:100%;
  .login, {
    position:absolute;
    background:#fff;
    height:260px; 
    width:300px;
    bottom:-520px;
    left:50%;
    margin-left:-150px;
    box-shadow: 0 0 20px 2px #464646;
    z-index:2;
  }
  .register {
    position:absolute;
    background:#fff;
    height:440px; 
    width:300px;
    bottom:-880px;
    left:50%;
    margin-left:-150px;
    box-shadow: 0 0 20px 2px #464646;
    z-index:2;
  }
}
.form-toggle {
  float:right;
  color:#00B3A0;
  font-size:14px;
  line-height:24px;
}
.form-toggle:hover {
  cursor:pointer;
}
.footer {
  position:absolute;
  top:100%;
  left:0;
  right:0;
  bottom:0;
  background-color:#e2e8e7;
  
  .footer-nav {
    list-style:none;
    width:100%;
    height:20%;
    position:relative;
    margin:0;
    padding:0;
    margin-top:100px;
    text-align:center; 
    .link {
      width:25%;
      float:left;
      border-left:1px solid #666666;
      border-right:1px solid #464646;
      &:first-child {
        border-left-width:0;
      }
      &:last-child {
        border-right-width:0;
      }
    }
  }
}
.disclaimer {
  font-size:12px;
  text-align:center;
  width:80%;
  margin:12px auto;
  padding:12px;
}
.container.loaded {
  .loading {
    display:none;
  }
  .bg-img { 
    opacity:1;
    filter: blur(0);
    transform: scale(1); 
  }
  .header {
    height:40px;
    background-color:#00b3a0;
    box-shadow: 0 0 20px 2px rgb(70, 70, 70);
    h1 {
      font-size:24px;
    }
  }
  .main {
    .login {
      // Create an overlap on the footer
      bottom: -webkit-calc(25% - 50px); 
      bottom: calc(25% - 50px); 
    }
  }
  .footer {
    top:75%;
  }
  
}
.register {
  transition: all .5s linear;
}
.container.loaded.show-register {
  .login {
    box-shadow:0 0 0 0 transparent
  }
    .register {
      // Create an overlap on the footer
      bottom: -webkit-calc(25% - 50px); 
      bottom: calc(25% - 50px); 
    }
  
}

form {
  padding:12px 24px 24px;
}

input {
  margin:12px 0;
  background-color: white;
  background-image: none;
  border: 0px dotted rgb(204, 204, 204);
  border-bottom-width: 2px;
  border-radius: 0;
  box-shadow: 0 0 0 transparent inset;
  color: rgb(204, 204, 204);
  display: block;
  font-size: 1.5em;
  height: 2.0em;
  line-height: 1.5;
  padding: 0 12px;
  transition: border-color 0.15s ease-in-out 0s, box-shadow 0.15s ease-in-out 0s;
  vertical-align: middle;
  width: 100%;
}

button {
  float:right;
  font-size: 1.5em;
  height: 2.0em;
  line-height: 1.5;
  margin: 12px 0;
  padding: 0;
  background-color:#00b3a0;
  color:#e2e8e7;
  border:0 none transparent;
  width:100%;
  text-align:center;
}
.loading {
  width:150px;
  height:150px;
  position:absolute;
  top:50%;
  left:50%;
  margin-top:-75px;
  margin-left:-75px;
}

.loading .block {
  width:40px;
  height:40px;
  /*border:5px solid #fff;*/
  position:absolute;
}

.loading .block:nth-child(1) {
  animation: top-left 3s infinite;
  background-color:#00aacf ;
}

.loading .block:nth-child(2) {
  animation: top-right 3s infinite;
  background-color:#f6c574 ;
}

.loading .block:nth-child(3) {
  animation: bottom-left 3s infinite;
  background-color:#fc5652 ;
}

.loading .block:nth-child(4) {
  animation: bottom-right 3s infinite;
  background-color:#00b3a0 ;
}
@-webkit-keyframes top-left {
  0%  { left: 25px; top:25px; }
  25% { left: 75px; top:25px; transform: rotate(90deg) }
  50% { left: 75px; top: 75px; transform: rotate(180deg) }
  75% { left: 25px; top: 75px; transform: rotate(270deg) }
  100%  { left: 25px; top: 25px; transform: rotate(360deg) }
}
@-webkit-keyframes top-right {
  0% { left: 75px; top: 25px; }
  25% { left: 75px; top: 75px; }
  50% { left: 25px; top: 75px; }
  75%  { left: 25px; top: 25px; }
  100% { left: 75px; top: 25px; }
}
@-webkit-keyframes bottom-left {
  0% { left: 75px; top: 75px; }
  25% { left: 25px; top: 75px; transform: rotate(90deg) }
  50%  { left: 25px; top: 25px; transform: rotate(180deg) }
  75%  { left: 75px; top: 25px; transform: rotate(270deg) }
  100% { left: 75px; top: 75px; transform: rotate(360deg) }
} 
@-webkit-keyframes bottom-right {
  0% { left: 25px; top: 75px; }
  25%   { left: 25px; top: 25px; }
  50% { left: 75px; top: 25px; }
  75% { left: 75px; top: 75px; }
  100% { left: 25px; top: 75px; }
}

              
            
!

JS

              
                $(function() {
  $('<img/>').attr('src', 'http://lorempixel.com/1400/900/nature/3').load(function() {
    $('.bg-img').append($(this));
    // simulate loading
    setTimeout(function() { 
     $('.container').addClass('loaded'); 
    }, 1500)
   //$(this).remove(); // prevent memory leaks as @benweet suggested
  });
  $('.form-toggle').on('click', function() {
    $('.container').toggleClass('show-register')
  })
})
              
            
!
999px

Console