<link href="https://fonts.googleapis.com/css?family=Source+Sans+Pro" rel="stylesheet">
<div class="pen">
  <div class="box"></div>
  <div class="slider">
    <div class="range"></div>
    <div class="handle-container">
      <div class="handle-hit-area">
        <div class="handle"></div>
      </div>
    </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="#FF1C68" offset="0%"/>
        <stop stop-color="#FF1C68" 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: #FF1C68;
  --green: #14D790;
  --blue: #198FE3;
  --white: #fff;
  --off-white: #ddd;
  background: var(--white);
  font-family: 'Source Sans Pro', sans-serif;
  height: 100vh;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
}

.pen {
  flex: 1 1 100%;
  flex-direction: column;
  width: 300px;
  margin: 0 auto;
}

.box {
  background: var(--pink);
  width: 80px;
  height: 80px;
}

.created-by {
  flex: 0 0 50px;
  background: #fff;
  color: #222;
  text-decoration: none;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  padding-right: 30px;
}

.logo {
  margin-left: 10px;
}

.pen {
  display: flex;
  justify-content: center;
  align-items: center;
}

.slider {
  width: 300px;
  height: 100px;
  position: relative;
}

.range {
  border-radius: 3px;
  height: 6px;
  background: var(--off-white);
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  transform: translateY(-50%);
}

$handleSize: 20px;
$handlePadding: 30px;

.handle-container {
  position: absolute;
  width: $handleSize + ($handlePadding * 2);
  height: $handleSize + ($handlePadding * 2);
  top: 50%;
  left: 0%;
  transform: translateY(-50%) translateX(-50%);
}

.handle-hit-area {
  padding: $handlePadding;
  width: $handleSize;
  height: $handleSize;
}

.handle {
  background: var(--blue);
  border-radius: 50%;
  width: $handleSize;
  height: $handleSize;
}
View Compiled
const { easing, keyframes, pointer, decay, spring, styler, transform, listen, value } = popmotion;
const { pipe, clamp, conditional, linearSpring, interpolate } = transform;

const pointerX = (x) => pointer({ x }).pipe(v => v.x); 

const box = document.querySelector('.box');
const boxStyler = styler(box);

const range = document.querySelector('.range');
const rangeWidth = range.getBoundingClientRect().width;

const handle = document.querySelector('.handle-hit-area');
const handleStyler = styler(handle);
const handleX = value(0, handleStyler.set('x'));

const springRange = (from, to, strength) => pipe(
  conditional(
    v => v < from,
    linearSpring(strength, from)
  ),
  conditional(
    v => v > to,
    linearSpring(strength, to)
  )
);

const boxAnimation = keyframes({
  values: [0, -150, 150, 0],
  easings: [easing.backOut, easing.backOut, easing.easeOut],
  duration: 2000
}).start(boxStyler.set('x'));

boxAnimation.pause();
handleX.subscribe(pipe(
  interpolate([0, rangeWidth], [0, 1]),
  clamp(0, 1),
  v => boxAnimation.seek(v)
));

const startDrag = () => pointerX(handleX.get())
  .pipe(springRange(0, rangeWidth, 0.1))
  .start(handleX);

const stopDrag = () => {
  const x = handleX.get();
  (x < 0 || x > rangeWidth)
    ? snapHandleToEnd(x)
    : momentumScroll(x);
};

const snapHandleToEnd = (x) => spring({
  from: x,
  velocity: handleX.getVelocity(),
  to: x < 0 ? 0 : rangeWidth,
  damping: 30,
  stiffness: 5000
}).start(handleX);

const momentumScroll = (x) => decay({
  from: x,
  velocity: handleX.getVelocity()
}).pipe(clamp(0, rangeWidth)).start(handleX);

listen(handle, 'mousedown touchstart').start(startDrag);
listen(document, 'mouseup touchend').start(stopDrag);
View Compiled
Rerun