css Audio - Active file-generic CSS - Active Generic - Active HTML - Active JS - Active SVG - Active Text - Active file-generic Video - Active header Love html icon-new-collection icon-person icon-team numbered-list123 pop-out spinner split-screen star tv

Pen Settings

CSS Base

Vendor Prefixing

Add External Stylesheets/Pens

Any URL's added here will be added as <link>s in order, and before the CSS in the editor. If you link to another Pen, it will include the CSS from that Pen. If the preprocessor matches, it will attempt to combine them before processing.

+ add another resource

You're using npm packages, so we've auto-selected Babel for you here, which we require to process imports and make it all work. If you need to use a different JavaScript preprocessor, remove the packages in the npm tab.

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

Use npm Packages

We can make npm packages available for you to use in your JavaScript. We use webpack to prepare them and make them available to import. We'll also process your JavaScript with Babel.

⚠️ This feature can only be used by logged in users.

Code Indentation

     

Save Automatically?

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.

HTML Settings

Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

            
              <div class="panel">
<h1>Memory!</h1>
  <div class="counter">0</div>
  <button id="reset"><svg xmlns="http://www.w3.org/2000/svg" width="124" height="111" viewBox="1651 -13 124 111">
  <path fill="#FFF" fill-rule="evenodd" d="M1761.8 44c-.4 13.6-5.7 27-16 37.4-21.6 21.5-56.4 21.6-77.8 0-21.4-21.3-21.3-56 0-77.5C1679-7 1693-12.3 1707-12.4V8.5c-8.8 0-17.6 3.5-24.3 10.2-13.7 13.7-13.7 35.8 0 49.5 13.5 13.6 35.7 13.6 49.3 0 6.7-6.8 10-15.5 10.3-24.2h-13.4l23-30 23 30h-12.8z"/>
</svg>
</button>
</div>
<div class="container">
  <div class="card yellow">
    <div class="front">
    </div>
    <div class="back">
      <svg xmlns="http://www.w3.org/2000/svg" width="200" height="200" viewBox="60 140 200 200">
  <g fill="none" fill-rule="evenodd" transform="translate(60 140)">
    <circle cx="100" cy="100" r="100" fill="#FFD400"/>
    <path fill="#FFF" d="M100 180c44 0 80-36 80-80 0-44.3-36-80-80-80-44.3 0-80 35.7-80 80 0 44 35.7 80 80 80zm-.2-52.2L67 145l6.2-36.5-26.6-26 36.8-5.3L99.8 44 116.3 77l36.8 5.4-26.5 26 6.2 36.5-33-17.2z" opacity=".8"/>
  </g>
</svg>

    </div>
  </div>
  <div class="card black">
    <div class="front"></div>
    <div class="back">
      <svg xmlns="http://www.w3.org/2000/svg" width="200" height="200" viewBox="321 140 200 200">
  <g fill="none" fill-rule="evenodd" transform="translate(321 140)">
    <circle cx="100" cy="100" r="100" fill="#000"/>
    <path fill="#FFF" fill-opacity=".5" d="M113 100V45H87v55H60v26h27v29h26v-29h27v-26h-27zm-13 80c44.2 0 80-35.8 80-80s-35.8-80-80-80-80 35.8-80 80 35.8 80 80 80z"/>
  </g>
</svg>
    </div>
  </div>
  <div class="card greenblue">
    <div class="front"></div>
    <div class="back">
    <svg xmlns="http://www.w3.org/2000/svg" width="200" height="200" viewBox="582 453 200 200">
  <g fill="none" fill-rule="evenodd" transform="translate(582 453)">
    <circle cx="100" cy="100" r="100" fill="#006860"/>
    <path fill="#FFF" fill-opacity=".5" d="M100 180c44.2 0 80-35.8 80-80s-35.8-80-80-80-80 35.8-80 80 35.8 80 80 80zM69.6 37l5 26.8c.4 2.7 1 2.7 1.5 0L80.4 35l4.5 28.8c.4 2.7 1.2 2.7 1.7 0l5-26.8L94 69.6c.3 2.8-1 6.6-3 8.5l-2.6 2.7c-2 2-3.5 5.7-3.4 8.5 0 0 2.8 75.3-4 75.2-6.8 0-5-75.2-5-75.2 0-2.7-1.4-6.6-3.4-8.5L70 78c-2-1.8-3.3-5.7-3-8.4L69.5 37zm56 0S111 55.5 111 78.7c0 23 5.3 24 5.3 24L115 159c0 2.8 2 5 4.8 5h1c2.7 0 5-2.2 4.8-5l-1.4-56.2 1.5-65.8z"/>
  </g>
</svg>

    </div>
  </div>
  <div class="card brown">
    <div class="front"></div>
    <div class="back">
      <svg xmlns="http://www.w3.org/2000/svg" width="200" height="200" viewBox="582 140 200 200">
  <g fill="none" fill-rule="evenodd" transform="translate(582 140)">
    <circle cx="100" cy="100" r="100" fill="#683900"/>
    <path fill="#FFF" fill-opacity=".5" d="M126.8 81h14c3 0 5.2 2.2 5.2 5v28c0 2.8-2.3 5-5 5h-14.3v-9.5h4.5c3 0 5.2-2.2 5.2-5v-9c0-2.8-2.3-5-5.2-5h-4.4V81zM100 180c44.2 0 80-35.8 80-80s-35.8-80-80-80-80 35.8-80 80 35.8 80 80 80zM69 65h57.8v70H69V65z"/>
  </g>
</svg>
    </div>
  </div>
  <div class="card greenblue">
    <div class="front"></div>
    <div class="back">
    <svg xmlns="http://www.w3.org/2000/svg" width="200" height="200" viewBox="582 453 200 200">
  <g fill="none" fill-rule="evenodd" transform="translate(582 453)">
    <circle cx="100" cy="100" r="100" fill="#006860"/>
    <path fill="#FFF" fill-opacity=".5" d="M100 180c44.2 0 80-35.8 80-80s-35.8-80-80-80-80 35.8-80 80 35.8 80 80 80zM69.6 37l5 26.8c.4 2.7 1 2.7 1.5 0L80.4 35l4.5 28.8c.4 2.7 1.2 2.7 1.7 0l5-26.8L94 69.6c.3 2.8-1 6.6-3 8.5l-2.6 2.7c-2 2-3.5 5.7-3.4 8.5 0 0 2.8 75.3-4 75.2-6.8 0-5-75.2-5-75.2 0-2.7-1.4-6.6-3.4-8.5L70 78c-2-1.8-3.3-5.7-3-8.4L69.5 37zm56 0S111 55.5 111 78.7c0 23 5.3 24 5.3 24L115 159c0 2.8 2 5 4.8 5h1c2.7 0 5-2.2 4.8-5l-1.4-56.2 1.5-65.8z"/>
  </g>
</svg>

    </div>
  </div>
  <div class="card red">
    <div class="front"></div>
    <div class="back">
 <svg xmlns="http://www.w3.org/2000/svg" width="200" height="200" viewBox="843 453 200 200">
  <g fill="none" fill-rule="evenodd" transform="translate(843 453)">
    <circle cx="100" cy="100" r="100" fill="#C40E01"/>
    <path fill="#FFF" fill-opacity=".5" d="M100 180c44.2 0 80-35.8 80-80s-35.8-80-80-80-80 35.8-80 80 35.8 80 80 80zm0-29.2l-40.5-40.4c-11.2-11-11.2-29.2 0-40.3 11-11 29.2-11 40.3 0 0 0 .8-.2 1-.5 11.2-11 29.3-11 40.4 0 11.2 11.2 11.2 29.2 0 40.4L100 150.7z"/>
  </g>
</svg>


    </div>
  </div>
 
  <div class="card green">
    <div class="front"></div>
    <div class="back">
      <svg xmlns="http://www.w3.org/2000/svg" width="200" height="200" viewBox="843 140 200 200">
  <g fill="none" fill-rule="evenodd" transform="translate(843 140)">
    <circle cx="100" cy="100" r="100" fill="#086800"/>
    <path fill="#FFF" fill-opacity=".5" d="M100 180c44.2 0 80-35.8 80-80s-35.8-80-80-80-80 35.8-80 80 35.8 80 80 80zm-56-75.4c0-4.4 3.6-8 8-8h11.5c4.5 0 8 3.6 8 8V128c0 4.4-3.5 8-8 8H52c-4.4 0-8-3.6-8-8v-23.4zm84.3 0c0-4.4 3.6-8 8-8h11.5c4.4 0 8 3.6 8 8V128c0 4.4-3.5 8-8 8h-11.5c-4.4 0-8-3.6-8-8v-23.4zm20.2-8c0-26.8-21.8-48.6-48.6-48.6-27 0-48.7 21.8-48.7 48.6h12C63.5 76.3 80 60 100.3 60c20.4 0 37 16.3 37.2 36.6h11z"/>
  </g>
</svg>

    </div>
  </div>
  <div class="card black">
    <div class="front"></div>
    <div class="back">
      <svg xmlns="http://www.w3.org/2000/svg" width="200" height="200" viewBox="321 140 200 200">
  <g fill="none" fill-rule="evenodd" transform="translate(321 140)">
    <circle cx="100" cy="100" r="100" fill="#000"/>
    <path fill="#FFF" fill-opacity=".5" d="M113 100V45H87v55H60v26h27v29h26v-29h27v-26h-27zm-13 80c44.2 0 80-35.8 80-80s-35.8-80-80-80-80 35.8-80 80 35.8 80 80 80z"/>
  </g>
</svg>
    </div>
  </div>
   <div class="card blue">
    <div class="front"></div>
    <div class="back">
<svg xmlns="http://www.w3.org/2000/svg" width="200" height="200" viewBox="1889 140 200 200">
  <g fill="none" fill-rule="evenodd" transform="translate(1889 140)">
    <circle cx="100" cy="100" r="100" fill="#4C6FB0"/>
    <path fill="#FFF" fill-opacity=".5" d="M95 90v5c-.6 16.5-14.5 29.5-31 29-16.6-.7-29.6-14.6-29-31 .6-16.7 20-17.5 36.6-17 12.4.6 19.7 1.6 22.3 9 1.5-.7 3.6-1 5.8-1 2.2 0 4.2.3 6 1 2.5-7.4 9.8-8.4 22.2-9 16.5-.5 36 .3 36.6 17 .5 16.4-12.4 30.3-29 31-16.5.5-30.4-12.5-31-29v-5c-1.3-.6-3-1-4.8-1-1.8 0-3.5.4-5 1zm5 90c44.2 0 80-35.8 80-80s-35.8-80-80-80-80 35.8-80 80 35.8 80 80 80z"/>
  </g>
</svg>

    </div>
  </div>
  <div class="card orange">
    <div class="front"></div>
    <div class="back">
      <svg xmlns="http://www.w3.org/2000/svg" width="200" height="200" viewBox="1365 140 200 200">
  <g fill="none" fill-rule="evenodd" transform="translate(1365 140)">
    <circle cx="100" cy="100" r="100" fill="#F49D37"/>
    <path fill="#FFF" fill-opacity=".5" d="M130.7 96.2c1.4 12-4.2 24-15.2 30.4-11 6.3-24.3 5.2-34-2-20.8 9.7-37 13.7-39.6 9-2.8-4.6 8.6-16.5 27.4-29.8-1.6-12 4-24.3 15-30.7 11.3-6.4 25-5 34.5 2.4 20.2-9.2 35.6-13 38.3-8.4 2.6 4.6-8.4 16.2-26.6 29.2zM100 180c44.2 0 80-35.8 80-80s-35.8-80-80-80-80 35.8-80 80 35.8 80 80 80z"/>
    <path fill="#FFF" fill-opacity=".5" d="M74.8 117.8c-4.2 1-7 1-7.7-.2-.6-1.3.8-3.7 4-6.8.6 1.5 1.4 3 2.2 4.5l1.6 2.5zM125 81.8c4.2-1 7-1 7.7.2.7 1.2-.8 3.7-4 6.8-.5-1.5-1.3-3-2-4.5l-1.7-2.5z"/>
  </g>
</svg>


    </div>
  </div>
  <div class="card red">
    <div class="front"></div>
    <div class="back">
 <svg xmlns="http://www.w3.org/2000/svg" width="200" height="200" viewBox="843 453 200 200">
  <g fill="none" fill-rule="evenodd" transform="translate(843 453)">
    <circle cx="100" cy="100" r="100" fill="#C40E01"/>
    <path fill="#FFF" fill-opacity=".5" d="M100 180c44.2 0 80-35.8 80-80s-35.8-80-80-80-80 35.8-80 80 35.8 80 80 80zm0-29.2l-40.5-40.4c-11.2-11-11.2-29.2 0-40.3 11-11 29.2-11 40.3 0 0 0 .8-.2 1-.5 11.2-11 29.3-11 40.4 0 11.2 11.2 11.2 29.2 0 40.4L100 150.7z"/>
  </g>
</svg>


    </div>
  </div>

  <div class="card brown">
    <div class="front"></div>
    <div class="back">
      <svg xmlns="http://www.w3.org/2000/svg" width="200" height="200" viewBox="582 140 200 200">
  <g fill="none" fill-rule="evenodd" transform="translate(582 140)">
    <circle cx="100" cy="100" r="100" fill="#683900"/>
    <path fill="#FFF" fill-opacity=".5" d="M126.8 81h14c3 0 5.2 2.2 5.2 5v28c0 2.8-2.3 5-5 5h-14.3v-9.5h4.5c3 0 5.2-2.2 5.2-5v-9c0-2.8-2.3-5-5.2-5h-4.4V81zM100 180c44.2 0 80-35.8 80-80s-35.8-80-80-80-80 35.8-80 80 35.8 80 80 80zM69 65h57.8v70H69V65z"/>
  </g>
</svg>
    </div>
  </div>
    <div class="card blue">
    <div class="front"></div>
    <div class="back">
<svg xmlns="http://www.w3.org/2000/svg" width="200" height="200" viewBox="1889 140 200 200">
  <g fill="none" fill-rule="evenodd" transform="translate(1889 140)">
    <circle cx="100" cy="100" r="100" fill="#4C6FB0"/>
    <path fill="#FFF" fill-opacity=".5" d="M95 90v5c-.6 16.5-14.5 29.5-31 29-16.6-.7-29.6-14.6-29-31 .6-16.7 20-17.5 36.6-17 12.4.6 19.7 1.6 22.3 9 1.5-.7 3.6-1 5.8-1 2.2 0 4.2.3 6 1 2.5-7.4 9.8-8.4 22.2-9 16.5-.5 36 .3 36.6 17 .5 16.4-12.4 30.3-29 31-16.5.5-30.4-12.5-31-29v-5c-1.3-.6-3-1-4.8-1-1.8 0-3.5.4-5 1zm5 90c44.2 0 80-35.8 80-80s-35.8-80-80-80-80 35.8-80 80 35.8 80 80 80z"/>
  </g>
</svg>

    </div>
  </div>
  <div class="card green">
    <div class="front"></div>
    <div class="back">
      <svg xmlns="http://www.w3.org/2000/svg" width="200" height="200" viewBox="843 140 200 200">
  <g fill="none" fill-rule="evenodd" transform="translate(843 140)">
    <circle cx="100" cy="100" r="100" fill="#086800"/>
    <path fill="#FFF" fill-opacity=".5" d="M100 180c44.2 0 80-35.8 80-80s-35.8-80-80-80-80 35.8-80 80 35.8 80 80 80zm-56-75.4c0-4.4 3.6-8 8-8h11.5c4.5 0 8 3.6 8 8V128c0 4.4-3.5 8-8 8H52c-4.4 0-8-3.6-8-8v-23.4zm84.3 0c0-4.4 3.6-8 8-8h11.5c4.4 0 8 3.6 8 8V128c0 4.4-3.5 8-8 8h-11.5c-4.4 0-8-3.6-8-8v-23.4zm20.2-8c0-26.8-21.8-48.6-48.6-48.6-27 0-48.7 21.8-48.7 48.6h12C63.5 76.3 80 60 100.3 60c20.4 0 37 16.3 37.2 36.6h11z"/>
  </g>
</svg>

    </div>
  </div>
  <div class="card orange">
    <div class="front"></div>
    <div class="back">
      <svg xmlns="http://www.w3.org/2000/svg" width="200" height="200" viewBox="1365 140 200 200">
  <g fill="none" fill-rule="evenodd" transform="translate(1365 140)">
    <circle cx="100" cy="100" r="100" fill="#F49D37"/>
    <path fill="#FFF" fill-opacity=".5" d="M130.7 96.2c1.4 12-4.2 24-15.2 30.4-11 6.3-24.3 5.2-34-2-20.8 9.7-37 13.7-39.6 9-2.8-4.6 8.6-16.5 27.4-29.8-1.6-12 4-24.3 15-30.7 11.3-6.4 25-5 34.5 2.4 20.2-9.2 35.6-13 38.3-8.4 2.6 4.6-8.4 16.2-26.6 29.2zM100 180c44.2 0 80-35.8 80-80s-35.8-80-80-80-80 35.8-80 80 35.8 80 80 80z"/>
    <path fill="#FFF" fill-opacity=".5" d="M74.8 117.8c-4.2 1-7 1-7.7-.2-.6-1.3.8-3.7 4-6.8.6 1.5 1.4 3 2.2 4.5l1.6 2.5zM125 81.8c4.2-1 7-1 7.7.2.7 1.2-.8 3.7-4 6.8-.5-1.5-1.3-3-2-4.5l-1.7-2.5z"/>
  </g>
</svg>


    </div>
  </div>
  <div class="card yellow">
    <div class="front"></div>
    <div class="back">
      <svg xmlns="http://www.w3.org/2000/svg" width="200" height="200" viewBox="60 140 200 200">
  <g fill="none" fill-rule="evenodd" transform="translate(60 140)">
    <circle cx="100" cy="100" r="100" fill="#FFD400"/>
    <path fill="#FFF" d="M100 180c44 0 80-36 80-80 0-44.3-36-80-80-80-44.3 0-80 35.7-80 80 0 44 35.7 80 80 80zm-.2-52.2L67 145l6.2-36.5-26.6-26 36.8-5.3L99.8 44 116.3 77l36.8 5.4-26.5 26 6.2 36.5-33-17.2z" opacity=".8"/>
  </g>
</svg>

    </div>
  </div>
</div>

            
          
!
            
              $yellow: #FFD400;
$black: #000;
$brown: #683900;
$green: #086800;
$orange: #F49D37;
$blue: #4C6FB0;
$greenblue: #006860;
$red: #C40E01;
$front: #F5D5F4;
$semitransparent: rgba(255,255,255,0.75);
$grad1: #fff;
$grad2: transparent;
$stripes: linear-gradient(135deg,
        $grad1 0%, 
        $grad1 24.9%,
        $grad2 25%,
        $grad2 49.9%, 
        $grad1 50%, 
        $grad1 74.9%,
        $grad2 75%,
        $grad2 100%);
$stripe-size: 5em;

@import url('https://fonts.googleapis.com/css?family=Bahiana');

.panel { 
  background: #fff;
  font-family: "Bahiana", sans-serif;
  font-size: 2rem;
  display: flex;
  h1 {
  font-size: 4rem;
  padding: 0;
  margin: 0;
  }
  .counter, button {
    font-size: 1em;
    padding: .5em;
    margin: auto 0 auto auto;
        height: 2em;
    width: 2em;
    box-sizing: border-box;
  }
  .counter {
    background: #eee;
    text-align: center;

  }
  button {
    background: #444;
    color: #fff;
    border: none;
    margin-left: 0;
    svg {
      height: 100%;
      width: 100%;
      padding-left: .1em;
      box-sizing: border-box;
    }
  }
}
.container svg {
  width: 100%;
  height: 100%;
  box-sizing: border-box;
  background-color: $semitransparent;
  padding: 1em;
  
}
.container {
  display: flex;
  flex-flow: row wrap;
}
.card {
  font-size: 10px;
  @media(min-width: 600px) {
    font-size: 16px;
  }
  margin: .75em;
  border-radius: .35em;
  box-shadow: 0 .05em .25em rgba(0,0,0,.15);
  width: 10em;
  height: 10em;
  display: inline-block;
  position: relative;
overflow: hidden;
  transition: transform .2s linear;
  .back {
    opacity: 0;
    transform: scaleX(-1);
  }
  .front {
    opacity: 1;
    background-color: $front;
  }
  &.flipped, &.clear {
    transform: scaleX(-1);
    .front {
      opacity: 0;
    }
    .back {
      opacity: 1;
    }
    &.yellow .back {
      background-color: $yellow;
    }
    &.green .back {
      background-color: $green;
    }
    &.brown .back {
      background-color: $brown;
    }
    &.black .back {
      background-color: $black;
    }
    &.orange .back {
      background-color: $orange;
    }
    &.blue .back {
      background-color: $blue;
    }
     &.greenblue .back {
      background-color: $greenblue;
    }
     &.red .back {
      background-color: $red;
    }
  }
  div {
    transition: opacity 0s linear .1s;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: $stripes;
    background-size: $stripe-size $stripe-size;
  }
}

            
          
!
            
              var cards = [];
var counter = 0;
$(".card").click(function() {
  var el = $(this);
  if (!el.is(".flipped, .clear")) {
    checkCards();
    flipCard(el);
    updateCounter();
  }
});

$("#reset").click(function() {
  $(".card").removeClass("flipped clear");   
   cards = [];
   counter = 0;
   updateCounter();
   $(".card").randomize(); 

});


function updateCounter() {
  if (cards.length == 2) {
    counter++;
  }
  $(".counter").text(counter);

}

function flipCard(el) {
  if (cards.length == 2) {
    $(".flipped").removeClass("flipped");
    cards = [];
  }
  cards.push(el.attr("class"));
  el.addClass("flipped");
}

function checkCards() {
  if (cards.length == 2) {
    if (cards[0] == cards[1]) { // if correct
      $(".flipped").addClass("clear").removeClass("flipped");
    cards = [];
    }

  }
}
// randomize function found on stackoverflow:
// http://stackoverflow.com/a/11766418
$.fn.randomize = function(selector) {
  (selector ? this.find(selector) : this).parent().each(function() {
    $(this).children(selector).sort(function() {
      return Math.random() - 0.5;
    }).detach().appendTo(this);
  });

  return this;
};
            
          
!
999px
🕑 One or more of the npm packages you are using needs to be built. You're the first person to ever need it! We're building it right now and your preview will start updating again when it's ready.
Loading ..................

Console