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              <link href="https://fonts.googleapis.com/css?family=Source+Sans+Pro" rel="stylesheet">
<div class="pen">
  <div class="controls">
    <button class="modal-trigger">Open from here</button>
    <button class="modal-trigger">Open from here</button>
    <button class="modal-trigger">Open from here</button>
  </div>
  <div class="overlay cancel-modal"></div>
  <div class="modal-container cancel-modal">
    <div class="modal">
      <footer>
        <button class="submit"></button>
        <button class="cancel cancel-modal"></button>
      </footer>
    </div>
  </div>
</div>
<a class="created-by" target="_blank" href="https://popmotion.io">
  Pen created with
  <svg class="logo" width="125" height="25" viewBox="0 0 200 41">
    <defs>
      <linearGradient x1="50%" y1="0%" x2="50%" y2="100%" id="popmotion-gradient">
        <stop stop-color="#ED2754" offset="0%"/>
        <stop stop-color="#FF44D1" offset="100%"/>
      </linearGradient>
    </defs>
    <path
          fill="url(#popmotion-gradient)"
          d="M15.65.85c6.3 0 9.6 4.17 9.6 9.4 0 5.93-4.3 11.33-11.78 11.33H8.8l-1.04 10.2H.28L3.48.85h12.17zm-5.4 7.03l-.77 7.03h4.26c2.54 0 4.04-1.67 4.04-3.9 0-1.58-1-3.12-3.13-3.12h-4.4zM23.36 21.85c0-7 5.85-12.2 12.8-12.2 5.98 0 10.65 4.4 10.65 10.43 0 7.03-6.02 12.15-12.78 12.15-6.12 0-10.66-4.35-10.66-10.38zm16.28-1.27c0-2.4-1.58-4.4-4.03-4.4-2.85 0-5.03 2.4-5.03 5.2 0 2.33 1.55 4.32 4 4.32 2.9 0 5.07-2.4 5.07-5.12zM55.66 10.1l.1 2.3s1.86-2.75 6.12-2.75c4.94 0 8.8 4.17 8.8 10.25 0 7.03-5.36 12.33-11.02 12.33-3.9 0-5.5-2.35-5.5-2.35l-1.13 10.97h-7.2l3.2-30.75h6.63zm8 10.3c0-2.32-1.55-4.22-4.14-4.22-2.77 0-4.13 2.18-4.13 2.18l-.55 5.12s.9 2.18 3.67 2.18c2.95 0 5.13-2.45 5.13-5.26zM91.18 31.78h-7.2l1.35-12.8c0-.13.05-.4.05-.67 0-1.26-.64-1.98-1.95-1.98-1.68 0-3.54 1.67-3.54 1.67l-1.46 13.78h-7.2L73.5 10.1h6.8l.1 2.18s2.98-2.54 6.3-2.54c3.53 0 4.66 2.63 4.66 2.63s3.27-2.63 6.94-2.63c4.86 0 7.08 2.72 7.08 7.12 0 .54-.05 1.13-.1 1.68l-1.35 13.24H96.7l1.33-12.38c.05-.45.05-.64.05-.9 0-1.5-.77-2.18-1.95-2.18-1.77 0-3.5 1.72-3.5 1.72l-1.45 13.74M106.16 21.85c0-7 5.85-12.2 12.8-12.2 5.98 0 10.65 4.4 10.65 10.43 0 7.03-6.02 12.15-12.78 12.15-6.13 0-10.66-4.35-10.66-10.38zm16.28-1.27c0-2.4-1.6-4.4-4.03-4.4-2.85 0-5.03 2.4-5.03 5.2 0 2.33 1.54 4.32 4 4.32 2.9 0 5.07-2.4 5.07-5.12zM140.4 10.1l.5-4.76h-7.2l-.5 4.76h-3.13l-.68 6.53h3.12l-1.6 15.15h7.23l1.58-15.15h5.18l-1.57 15.15h7.26l2.25-21.68H140.4M146.46.9l-.64 6.16h7.5l.62-6.16h-7.48M153.05 21.85c0-7 5.85-12.2 12.8-12.2 5.97 0 10.65 4.4 10.65 10.43 0 7.03-6.04 12.15-12.8 12.15-6.12 0-10.65-4.35-10.65-10.38zm16.28-1.27c0-2.4-1.6-4.4-4.04-4.4-2.86 0-5.04 2.4-5.04 5.2 0 2.33 1.54 4.32 4 4.32 2.9 0 5.07-2.4 5.07-5.12zM198 31.78h-7.2l1.26-12.02c.05-.4.05-.63.05-.95 0-1.5-.76-2.62-2.62-2.62-2.4 0-4.36 1.95-4.36 1.95l-1.4 13.65h-7.2l2.25-21.68h6.9v2.3s2.9-2.7 6.44-2.7c3.95 0 7.3 2.53 7.3 7.75 0 .4-.04 1-.08 1.5L198 31.77"
          />
  </svg>
</a>
            
          
!
            
              body {
  --pink: #ED2754;
  background: #111;
  color: #eee;
  font-family: 'Source Sans Pro', sans-serif;
  height: 100vh;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
}

button {
  outline: none;
  padding: 20px;
  -webkit-appearance: none;
  background: white;
  border: none;
}

.pen {
  flex: 1 1 100%;
}

.created-by {
  flex: 0 0 50px;
  color: #eee;
  text-decoration: none;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  padding-right: 30px;
  border-top: 1px solid var(--pink);
}

.logo {
  margin-left: 10px;
}

.controls {
  display: flex;
  flex-direction: column;
  width: 200px;
  height: 100%;
  min-height: 400px;
  margin: 0 auto;
  justify-content: space-around;
  
  button {
    margin: 20px;
  }
}

.modal-container {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  bottom: 0;
  display: none;
  justify-content: center;
  align-items: center;
}

.overlay {
  display: none;
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  bottom: 0;
  background: rgba(0,0,0,0.6);
  opacity: 0;
  transform: translateZ(0);
}

.modal {
  background: #fff;
  border-radius: 10px;
  width: 300px;
  height: 250px;
  display: flex;
  align-items: flex-end;
  
  footer {
    width: 100%;
    display: flex;
    justify-content: flex-end;
  }
  
  button {
    border: none;
    border-radius: 5px;
    padding: 25px 50px;
    margin: 0 10px 10px 0;
  }
}

.submit {
  background: #8CDA26;
}

.cancel {
  background: #DA2632;
}

            
          
!
            
              const { css, transform, chain, delay, tween, easing, parallel } = window.popmotion;
const { interpolate } = transform;

let trigger;
let isClosing = false;

// Select DOM
const modalTriggersDom = document.querySelectorAll('.modal-trigger');
const dimmer = document.querySelector('.overlay');
const modalContainer = document.querySelector('.modal-container');
const modal = document.querySelector('.modal');

// Create CSS renderers
const dimmerRenderer = css(dimmer);
const modalContainerRenderer = css(modalContainer);
const modalRenderer = css(modal);

// Return the center x, y of a bounding box
function findCenter({ top, left, height, width }) {
  return {
    x: left + (width / 2),
    y: top + (height / 2)
  };
}

/*
  Generate a function that will take a progress value (0 - 1)
  and use that to tween the modal from the source to the destination
  bounding boxes
*/
const vRange = [0, 1];
function generateModalTweener(sourceBBox, destinationBBox) {
  const sourceCenter = findCenter(sourceBBox);
  const destinationCenter = findCenter(destinationBBox);

  const toX = interpolate(vRange, [sourceCenter.x - destinationCenter.x, 0]);
  const toY = interpolate(vRange, [sourceCenter.y - destinationCenter.y, 0]);
  const toScaleX = interpolate(vRange, [sourceBBox.width / destinationBBox.width, 1]);
  const toScaleY = interpolate(vRange, [sourceBBox.height / destinationBBox.height, 1]);

  return (v) => modalRenderer.set({
    opacity: v,
    x: toX(v),
    y: toY(v),
    scaleX: toScaleX(v),
    scaleY: toScaleY(v)
  });
}

function openModal(e) {
  if (e.target && e.target.classList.contains('modal-trigger')) {
    trigger = e.target;
    
    // Get bounding box of triggering element
    const triggerBBox = trigger.getBoundingClientRect();
    
    // Temporarily show modal container to measure modal
    dimmerRenderer.set('display', 'block').render();
    modalContainerRenderer.set('display', 'flex').render();
    modalRenderer.set('opacity', 0).render();
    
    // Get bounding box of final modal position
    const modalBBox = modal.getBoundingClientRect();

    // Get a function to tween the modal from the trigger
    const modalTweener = generateModalTweener(triggerBBox, modalBBox);
    
    // Fade in overlay
    tween({
      duration: 200,
      onUpdate: (v) => dimmerRenderer.set('opacity', v)
    }).start();
    
    chain([
      delay(75),
      tween({
        duration: 200,
        ease: easing.easeOut,
        onUpdate: modalTweener
      })
    ]).start();
  }
}

function closeComplete() {
  isClosing = false;
  dimmerRenderer.set('display', 'none').render();
  modalContainerRenderer.set('display', 'none').render();
  modalRenderer.set({
    y: 0,
    scaleX: 1,
    scaleY: 1,
    transformOrigin: '50% 50%'
  });
}

function cancelModal(e) {
  if (e.target && e.target.classList.contains('cancel-modal') && !isClosing) {
    e.stopPropagation();
    isClosing = true;
    
    const triggerBBox = trigger.getBoundingClientRect();
    const modalBBox = modal.getBoundingClientRect();
    
    const modalTweener = generateModalTweener(triggerBBox, modalBBox);
    
    parallel([
      tween({
        from: dimmerRenderer.get('opacity'),
        to: 0,
        onUpdate: (v) => dimmerRenderer.set('opacity', v)
      }),
      tween({
        from: modalRenderer.get('opacity'),
        to: 0,
        duration: 250,
        onUpdate: modalTweener,
        onComplete: closeComplete
      })
    ]).start();
  }
}

function submitModal(e) {
  if (isClosing) return;
  e.stopPropagation();
  
  isClosing = true;
  
  const toScaleXIn = interpolate(vRange, [1, 1.2]);
  const toScaleYIn = interpolate(vRange, [1, 0.8]);

  const toScaleXOut = interpolate(vRange, [1.2, 0.5]);
  const toScaleYOut = interpolate(vRange, [0.8, 2]);
  
  chain([
    tween({
      onStart: () => modalRenderer.set('transform-origin', '50% 100%'),
      duration: 200,
      onUpdate: (v) => modalRenderer.set({
        scaleX: toScaleXIn(v),
        scaleY: toScaleYIn(v),
        y: v * 100
      })
    }),
    parallel([
      tween({
        from: dimmerRenderer.get('opacity'),
        to: 0,
        onUpdate: (v) => dimmerRenderer.set('opacity', v)
      }),
      tween({
        onUpdate: (v) => modalRenderer.set({
          opacity: 1 - v,
          scaleX: toScaleXOut(v),
          scaleY: toScaleYOut(v),
          y: - 300 * easing.easeIn(v)
        }),
        duration: 200,
        onComplete: closeComplete
      })
    ])
  ]).start();
}

document.addEventListener('click', openModal);
document.addEventListener('click', cancelModal);
document.querySelector('.submit').addEventListener('click', submitModal);
            
          
!
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