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='center list flex-column'>
    <div class='card flex-row open'>
      <img src='http://i.harperapps.com/covers/9780008108298/y450-293.jpg' class='book'>
      <div class='flex-column info'>
        <div class='title'>The Fellowship of the Ring</div>
        <div class='author'>J.R.R. Tolkien</div>
        <div class='hidden bottom summary'>
          Lorem, ipsum dolor sit amet consectetur adipisicing elit. Quod ratione impedit temporibus maiores autem aperiam assumenda exercitationem, quisquam nobis esse.
        </div>
      </div>
      <div class='flex-column group'>
        <div class='members'>
          <span class='current'>14</span> /
          <span class='max'>30</span>
        </div>
        <div class='hidden bottom'>
          <button class='simple'>Join</button>
        </div>
      </div>
    </div>
    <div class='card flex-row'>
      <img src='https://i.pinimg.com/originals/52/ec/12/52ec12f7dd324864949267c92cce2e43.jpg' class='book'>
      <div class='flex-column info'>
        <div class='title'>1984</div>
        <div class='author'>George Orwell</div>
        <div class='hidden bottom summary'>
          Lorem, ipsum dolor sit amet consectetur adipisicing elit. Quod ratione impedit temporibus maiores autem aperiam assumenda exercitationem, quisquam nobis esse.
        </div>
      </div>
      <div class='flex-column group'>
        <div class='members'>
          <span class='current'>14</span> /
          <span class='max'>30</span>
        </div>
        <div class='hidden bottom'>
          <button class='simple'>Join</button>
        </div>
      </div>
    </div>
    <div class='card flex-row'>
      <img src='https://images-na.ssl-images-amazon.com/images/I/51N5qVjuKAL._SX309_BO1,204,203,200_.jpg' class='book'>
      <div class='flex-column info'>
        <div class='title'>To Kill a Mockingbird</div>
        <div class='author'>Harper Lee</div>
        <div class='hidden bottom summary'>
          Lorem, ipsum dolor sit amet consectetur adipisicing elit. Quod ratione impedit temporibus maiores autem aperiam assumenda exercitationem, quisquam nobis esse.
        </div>
      </div>
      <div class='flex-column group'>
        <div class='members'>
          <span class='current'>14</span> /
          <span class='max'>30</span>
        </div>
        <div class='hidden bottom'>
          <button class='simple'>Join</button>
        </div>
      </div>
    </div>
    <div class='card flex-row'>
      <img src='https://upload.wikimedia.org/wikipedia/en/thumb/f/f7/TheGreatGatsby_1925jacket.jpeg/220px-TheGreatGatsby_1925jacket.jpeg' class='book'>
      <div class='flex-column info'>
        <div class='title'>Great Gatsby</div>
        <div class='author'>F Scott Fitzgerald</div>
        <div class='hidden bottom summary'>
          Lorem, ipsum dolor sit amet consectetur adipisicing elit. Quod ratione impedit temporibus maiores autem aperiam assumenda exercitationem, quisquam nobis esse.
        </div>
      </div>
      <div class='flex-column group'>
        <div class='members'>
          <span class='current'>14</span> /
          <span class='max'>30</span>
        </div>
        <div class='hidden bottom'>
          <button class='simple'>Join</button>
        </div>
      </div>
    </div>
  </div>
</div>
              
            
!

CSS

              
                $dark:#131325;
body {
  background-color:$dark;
}
.flex-row {
  display:flex;
  flex-flow:row;
  align-items:center;
}
.flex-column{
  display:flex;
  flex-flow:column;
}
.center {
    align-items:center;
  position:absolute;
  top:50%;
  left:50%;
  transform:translate(-50%,-50%);
}
.list {
  border-radius:3px;
  overflow:hidden;
  & .card {
    cursor:pointer;
    min-width:700px;
    margin-bottom:10px;
    perspective:600px;
    transition:all 0.1s;
    & .bottom {
      height:0px;
      overflow:hidden;
      width:200px;
      font-size:12px;
      color:#777;
      font-weight:normal;
    }
    &.open {
      padding:30px;
      height:auto;
      & .bottom {
        margin-top:10px;
        height:100%;
        overflow:visible;
      }
      & .book {
        transform:rotateY( 50deg );
        box-shadow:-10px 10px 10px 2px rgba(0,0,0,.2), -2px 0px 0px 0px #888;
        transition:all 0.5s;
        transition-delay:0.05s;
      }
      & .info {
        transform:translate(0,-10px);
      }
      & .members {
        padding:15px 20px;
        border-radius:4px;
        align-self:flex-start;
      }
    }
    & button.simple {
      cursor:pointer;
      color:#CCC;
      border:none;
      outline:none;
      border-radius:4px;
      background-color:#1ea94b;
      padding:15px 20px;
      font-family:'Montserrat';
      font-weight:bold;
      transition:all 0.1s;
      &:hover {
        box-shadow:0px 15px 20px -5px rgba(0,0,0,.3);
        transform:translate(0,-2px);
      }
    }
    background-color:lighten($dark,8%);
    box-shadow:0px 2px 10px rgba(0,0,0,.2);
    overflow:hidden;
    height:90px;
    & .book {
      transition:all 0.5s;
      width:120px;
      box-shadow:0px 2px 10px rgba(0,0,0,0.3);
      overflow:hidden;
    }
    & .info {
      transition:all 0.2s;
      min-width:200px;
      padding:0px 30px;
      font-family:'Montserrat';
      font-weight:bold;
      & .title {
        font-size:1em;
        color:#FFF;
        letter-spacing:1px;
      }
      & .author {
        font-size:12px;
        font-weight:normal;
        color:#888;
      }
    }
    & .group {
        margin-left:auto;  
    }
    & .members {

      transition:all 0.1s;
      padding:40px;
      font-family:'Montserrat';
      color:#CCC;
      background-color:lighten($dark,5%);
      & .current {
        font-weight:bold;
        margin-right:10px;
      }
      & .max {
        opacity:0.5;
        margin-left:10px;
      }
    }
  }
}
              
            
!

JS

              
                let old = $('.card').get(0);
$('.card').click(function(){
  if(old!=null && $(old).hasClass('open'))
    $(old).toggleClass('open');
   $(this).toggleClass('open');
   old = this;

})
              
            
!
999px

Console