Pen Settings

HTML

CSS

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

JavaScript

Babel is required to process package imports. If you need a different preprocessor remove all packages first.

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

Behavior

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.

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 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.

HTML

              
                <button>
  
<svg viewBox="0 0 242 109" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
  <g class="ears">
    <g class="ear-left">
      <ellipse class="ear-left-outer" transform="matrix(0.9391 -0.3436 0.3436 0.9391 -3.6062 17.8444)" cx="48.5" cy="19.1" rx="11.4" ry="13.8"/>
      <ellipse class="ear-left-inner" transform="matrix(0.9391 -0.3436 0.3436 0.9391 -3.8876 17.4659)" cx="47.3" cy="19.7" rx="7.3" ry="11.2"/>
    </g>
    <g class="ear-right">
      <ellipse class="ear-right-outer" transform="matrix(0.3436 -0.9391 0.9391 0.3436 106.5379 189.869)" cx="189.1" cy="18.7" rx="14.4" ry="11.9"/>
      <ellipse class="ear-right-inner" transform="matrix(0.3436 -0.9391 0.9391 0.3436 106.8522 191.5127)" cx="190.4" cy="19.3" rx="11.7" ry="7.7"/>
    </g>
  </g>
  <g class="eyes">
    <defs>
      <clipPath id="eyeRightClip">
        <path d="M175,25c0-11-7.8-20-17.5-20S140,14,140,25c0,0.7,0,1.3,0.1,2h34.8 C175,26.3,175,25.7,175,25z"/>
      </clipPath>
    </defs>
    <g class="eye-right">
      <path class="eye-right-outer" d="M174.9,27H186c0-0.3,0-0.7,0-1c0-14.4-11.6-26-26-26c-14.4,0-26,11.6-26,26 c0,0.3,0,0.7,0,1h6.1H174.9z"/>
      <path class="eye-right-inner" d="M175,25c0-11-7.8-20-17.5-20S140,14,140,25c0,0.7,0,1.3,0.1,2h34.8 C175,26.3,175,25.7,175,25z"/>
      <g clip-path="url(#eyeRightClip)">
        <circle class="eye-right-pupil" cx="158" cy="18" r="5"/>
      </g>
    </g>
    <defs>
      <clipPath id="eyeLeftClip">
        <path d="M97,25c0-11-7.8-20-17.5-20S62,14,62,25c0,0.7,0,1.3,0.1,2h34.8C97,26.3,97,25.7,97,25z" />
      </clipPath>
    </defs>
    <g class="eye-left">
      <path class="eye-left-outer" d="M96.9,27h6.1c0-0.3,0-0.7,0-1c0-14.4-11.6-26-26-26C62.6,0,51,11.6,51,26 c0,0.3,0,0.7,0,1h11.1H96.9z"/>
      <path class="eye-left-inner" d="M97,25c0-11-7.8-20-17.5-20S62,14,62,25c0,0.7,0,1.3,0.1,2h34.8C97,26.3,97,25.7,97,25z" />
      <g clip-path="url(#eyeLeftClip)">
        <circle class="eye-left-pupil" cx="80" cy="17.7" r="5"/>
      </g>
    </g>
  </g>
  <g class="nostrils">
    <g class="nostril-right">
      <ellipse class="nostril-right-outer" cx="130.5" cy="27.5" rx="6.5" ry="5.5"/>
      <circle class="nostril-right-inner" cx="130" cy="28" r="4"/>
    </g>
    <g class="nostril-left">
      <ellipse class="nostril-left-outer" cx="106.5" cy="27.5" rx="6.5" ry="5.5"/>
      <circle class="nostril-left-inner" cx="107" cy="28" r="4"/>
    </g>
  </g>
  <path class="body" d="M218,98H24C10.8,98,0,87.2,0,74V51c0-13.2,10.8-24,24-24h194c13.2,0,24,10.8,24,24v23 C242,87.2,231.2,98,218,98z"/>
  <g class="freckles">
    <circle class="freckle" cx="13.7" cy="41.4" r="1.6"/>
    <circle class="freckle" cx="20.1" cy="44.7" r="1.6"/>
    <circle class="freckle" cx="19.6" cy="37.8" r="1.6"/>
  </g>
  <defs>
    <clipPath id="mouthClip">
      <path d="M218,98H24C10.8,98,0,87.2,0,74V51c0-13.2,10.8-24,24-24h194c13.2,0,24,10.8,24,24v23 C242,87.2,231.2,98,218,98z"/>
    </clipPath>
  </defs>
  <g class="mouth" clip-path="url(#mouthClip)">
    <g class="mouth-pieces">
      <path class="mouth-back" d="M23.6,168.2l-3-56.1c0-7.8,6.4-14.1,14.1-14.1h172.4c7.8,0,14.1,6.4,14.1,14.1l-3,56.1"/>
      <path class="tongue" d="M174.9,168.2c-7.3-5-24.5-9.9-54.8-9.9s-48,5.1-54.8,9.9"/>
    </g>
  </g>
  <g class="teeth">
    <path class="tooth-left" d="M115,97.9v7.5c0,2-1.7,3.6-3.6,3.6H89.7c-2,0-3.6-1.7-3.6-3.6v-7.5H115z"/>
    <path class="tooth-right" d="M154,97.9v7.5c0,2-1.7,3.6-3.6,3.6h-21.7c-2,0-3.6-1.7-3.6-3.6v-7.5H154z"/>
  </g>
</svg>

</button>

<a target="_blank" href="https://codepen.io/MarioD/post/c76a53d9652de6ec9bf1217c1bea47e4/interactive-hippo-button-tutorial" class="link">Read / watch the tutorial</a>
              
            
!

CSS

              
                html,
body {
  height: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #1e313f;
}

button {
  width: 242px;
  border: 0;
  padding: 0;
  background: transparent;
  cursor: pointer;
}

.ear-left-outer, .ear-right-outer {fill:#919191;}
.ear-left-inner, .ear-right-inner {fill:#6D6D6D;}
.eye-right-outer, .eye-left-outer, .nostril-right-outer, .nostril-left-outer, .body {fill:#AAAAAA;}
.eye-right-inner, .eye-left-inner {fill:#FFFFFF;}
.nostril-right-inner, .nostril-left-inner{fill:#8C8C8C;}
.freckle {fill:#7C7C7C;}
.tongue {fill:#FF4848;}
.tooth-left, .tooth-right {fill:#FFFFE1;}

.link {
  font-family: 'Roboto', sans-serif;
  font-weight: 400;
  font-size: 13px;
  color: #ffffe3;
  text-decoration: none;
  position: absolute;
  bottom: 20px;
  right: 20px;
  border: 2px solid #335067;
  padding: 10px 14px;
  border-radius: 4px;
  transition: background 0.2s;
}

.link:hover {
  background: #243a4a;
}
              
            
!

JS

              
                // --------------
// Hover animaton
// --------------

const mouthSpeed = 0.3;
const easeType = Power2.easeOut;
const mouthOpen = gsap.timeline({ paused: true });
mouthOpen.to('.mouth-back', {duration: mouthSpeed, ease: easeType, y: -70}, 0);
mouthOpen.to('.tongue', {duration: mouthSpeed * 1.5, ease: easeType, y: -70}, 0);
mouthOpen.to('.teeth', {duration: mouthSpeed, ease: easeType, y: -70, scaleY: 1.2}, 0);
mouthOpen.to('.body', {duration: mouthSpeed, ease: easeType, scaleY: 1.06, transformOrigin: 'center bottom'}, 0);
mouthOpen.to('.freckles', {duration: mouthSpeed, ease: easeType, y: -10}, 0);
mouthOpen.to('.ears', {duration: mouthSpeed, ease: easeType, y: 6}, 0);
mouthOpen.to('.eye-right', {duration: mouthSpeed, ease: easeType, x: -2}, 0);
mouthOpen.to('.eye-left', {duration: mouthSpeed, ease: easeType, x: 2}, 0);
mouthOpen.to('.eyes', {duration: mouthSpeed, ease: easeType, y: 2}, 0);
mouthOpen.to('.nostrils', {duration: mouthSpeed, ease: easeType, y: -6}, 0);

// ------------
// Mouse events
// ------------

const button = document.querySelector('button');

button.addEventListener('mouseenter', enterButton);
button.addEventListener('mouseleave', leaveButton);

function enterButton() { mouthOpen.play(); }
function leaveButton() { mouthOpen.reverse(); }

// ----------
// Ear wiggle
// ----------

const earWiggle = gsap.timeline({ paused: true, repeat: 2 });
earWiggle.set('.ear-right', { transformOrigin: "center center" });
earWiggle.to('.ear-right', { duration: 0.1, rotation: 45 });
earWiggle.to('.ear-right', { duration: 0.1, rotation: 0 });

window.setInterval(earWigglePlay, 2500);

function earWigglePlay() { earWiggle.play(0); }

// ------------
// Eye tracking
// ------------

const eyeRightPupil = document.querySelector('.eye-right-pupil');
const eyeLeftPupil = document.querySelector('.eye-left-pupil');
const eyeLeftInner = document.querySelector('.eye-left-inner');
const innerEyeWidth = eyeLeftInner.getBoundingClientRect().width;
const innerEyeHeight = eyeLeftInner.getBoundingClientRect().height;
const pupilWidth = eyeLeftPupil.getBoundingClientRect().width;
const pupilHeight = eyeLeftPupil.getBoundingClientRect().height;
const xMovement = (innerEyeWidth - pupilWidth)/2;
const yMovement = (innerEyeHeight - pupilHeight)/2;

window.addEventListener('mousemove', updateEyePosition);

function updateEyePosition(event) {
  const posX = ((event.clientX / document.body.clientWidth) * 2 - 1) * xMovement;
  const posY = ((event.clientY / document.body.clientHeight) * 2 - 1) * yMovement;
  
  eyeLeftPupil.style.transform = `translate(${posX}px, ${posY}px)`;
  eyeRightPupil.style.transform = `translate(${posX}px, ${posY}px)`;
}

// Last minute link to the tutorial
button.addEventListener('click', () => window.open('https://codepen.io/MarioD/post/interactive-hippo-button-tutorial'));
              
            
!
999px

Console