<div class="mover"><i>1</i></div>
<div class="mover"><i>2</i></div>
<div class="mover"><i>3</i></div>
<div class="mover"><i>4</i></div>
<div class="mover"><i>5</i></div>
<div class="mover"><i>6</i></div>
<div class="mover"><i>7</i></div>
<div class="mover"><i>8</i></div>
<div class="mover"><i>9</i></div>
<div class="mover"><i>10</i></div>
<div class="mover"><i>11</i></div>
<div class="mover"><i>12</i></div>
<div class="mover"><i>13</i></div>
<svg data-visible="true">
<path d="M200 200l1 .2.8.6s.4.5.6 1 .2.5.3 1.2-.1.6-.2 1.3-.3.7-.6 1.4-.5.7-1.2 1.3-.7.5-1.5 1-1 .3-2 .6-1.1.1-2.2.1-1.2-.2-2.4-.5-1.1-.5-2.3-1.1-1.1-.8-2.2-1.8-.9-1.1-1.8-2.4-.7-1.4-1.3-2.9-.4-1.6-.7-3.3 0-1.8.2-3.6.3-1.8.9-3.7.9-1.8 1.9-3.5 1.2-1.7 2.7-3.2 1.7-1.4 3.5-2.7 2-1 4.2-1.9 2.3-.6 4.7-1 2.5-.1 5 .1 2.6.4 5.1 1.1 2.5 1.1 4.9 2.4 2.3 1.6 4.4 3.4 2 2.2 3.8 4.5 1.5 2.6 2.8 5.4.9 2.9 1.6 6 .3 3.2.3 6.4-.3 3.3-1.1 6.6-1.1 3.2-2.5 6.4-1.8 3-3.9 5.9-2.5 2.6-5.3 5-3.1 2.1-6.4 3.9-3.5 1.5-7.2 2.6-3.9.7-7.9 1-4-.1-8.1-.7-4-1-7.9-2.5-3.8-1.8-7.4-4.1-3.4-2.7-6.6-5.8-2.8-3.4-5.3-7.2-2.1-4.1-3.7-8.4-1.3-4.4-2-9.1-.3-4.8 0-9.6.8-4.8 2.1-9.5 1.8-4.6 4.1-9.1 2.8-4.3 6-8.2 3.7-3.6 7.8-6.9 4.5-2.8 9.2-5.2 5.1-1.9 10.4-3.2 5.4-.8 10.9-1 5.6.4 11.2 1.3 5.5 1.6 10.8 3.8 5.1 2.7 10 6 4.5 3.8 8.6 8.1 3.7 4.7 6.9 9.9 2.6 5.5 4.7 11.3 1.5 6.1 2.3 12.3.2 6.3-.3 12.7-1.2 6.3-3.1 12.5-2.5 6-5.6 11.8-3.8 5.5-8.2 10.6-4.9 4.6-10.3 8.7-5.9 3.5-12.1 6.5-6.6 2.2-13.4 3.8-7 .9-14.1 1-7.1-.6-14.2-2-7-2.1-13.7-5-6.4-3.6-12.5-7.8-5.6-5-10.7-10.5-4.6-6-8.5-12.6-3.2-7-5.7-14.3-1.7-7.6-2.6-15.4-.1-7.9.7-15.8 1.5-7.8 4-15.5 3.2-7.4 7.2-14.5 4.8-6.7 10.2-12.9 6.2-5.6 12.9-10.6 7.3-4.2 15-7.7 8.1-2.7 16.4-4.6 8.6-.9 17.3-.9 8.7.8 17.3 2.6 8.4 2.7 16.5 6.3 7.8 4.4 15 9.7 6.8 6 12.9 12.8 5.4 7.4 10 15.3 3.8 8.5 6.7 17.3 1.9 9.1 2.9 18.5 0 9.5-1 18.9-2 9.4-5 18.5-3.9 8.8-8.8 17.3-5.7 7.9-12.3 15.2-7.4 6.6-15.4 12.4-8.7 4.9-17.8 9-9.6 3.1-19.6 5.2-10.1 1-20.3 1-10.3-1.2-20.4-3.3-9.9-3.3-19.4-7.6-9.1-5.3-17.6-11.5-7.8-7.2-14.9-15.1-6.3-8.7-11.6-18.1-4.3-9.9-7.6-20.3-2.2-10.7-3.3-21.6.1-11 1.3-22 2.4-10.9 6-21.5 4.6-10.2 10.3-20 6.8-9.1 14.5-17.5 8.5-7.6 17.9-14.3 10.1-5.6 20.7-10.3 11.1-3.5 22.6-5.8 11.7-1.1 23.5-1 11.8 1.4 23.4 4 11.4 3.8 22.3 8.8 10.4 6.2 20.1 13.4 9 8.2 17.1 17.4 7.1 10 13.1 20.8 4.9 11.4 8.6 23.3 2.4 12.2 3.6 24.7-.2 12.6-1.6 25.2-2.8 12.3-6.9 24.4-5.4 11.6-12 22.7-7.7 10.3-16.5 19.8-9.8 8.6-20.5 16.2-11.5 6.3-23.6 11.5-12.6 3.9-25.6 6.5-13.3 1.2-26.7 1-13.3-1.6-26.5-4.6-12.8-4.4-25.1-10.1-11.7-7-22.7-15.2-10-9.4-19.1-19.8-7.9-11.3-14.7-23.5-5.5-12.8-9.6-26.2-2.7-13.8-3.9-27.9.2-14.2 2-28.3 3.2-13.9 7.8-27.4 6.1-13 13.6-25.4 8.7-11.6 18.6-22.2 11-9.6 23-17.9 12.9-7.2 26.4-12.9 14.2-4.3 28.8-7.1 14.8-1.3 29.7-1 14.9 1.8 29.6 5.2 14.3 5 28 11.4 13 7.9 25.2 17.1 11.2 10.5 21.2 22.1 8.8 12.6 16.3 26.2 6 14.3 10.5 29.2 3 15.4 3 15.4"/>
</svg>

<p class="message">Requires a browser that supports CSS Motion Path (such as Chrome 46+): </p>
<p class="support"></p>
<p><a href="https://codepen.io/danwilson/blog/css-motion-paths" target="_blank">More Info on CSS Motion Paths</a></p>


<!--main>
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  <div class="mover"></div>
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  <div class="mover"></div>
  <div class="mover"></div>
  <div class="mover"></div>
  <div class="mover"></div>
  <div class="mover"></div>
  <div class="mover"></div>
  <div class="mover"></div>
  <div class="mover"></div>
  <div class="mover"></div>
</main-->
$light: #fafafd;
$path: path("M200 200l1 .2.8.6s.4.5.6 1 .2.5.3 1.2-.1.6-.2 1.3-.3.7-.6 1.4-.5.7-1.2 1.3-.7.5-1.5 1-1 .3-2 .6-1.1.1-2.2.1-1.2-.2-2.4-.5-1.1-.5-2.3-1.1-1.1-.8-2.2-1.8-.9-1.1-1.8-2.4-.7-1.4-1.3-2.9-.4-1.6-.7-3.3 0-1.8.2-3.6.3-1.8.9-3.7.9-1.8 1.9-3.5 1.2-1.7 2.7-3.2 1.7-1.4 3.5-2.7 2-1 4.2-1.9 2.3-.6 4.7-1 2.5-.1 5 .1 2.6.4 5.1 1.1 2.5 1.1 4.9 2.4 2.3 1.6 4.4 3.4 2 2.2 3.8 4.5 1.5 2.6 2.8 5.4.9 2.9 1.6 6 .3 3.2.3 6.4-.3 3.3-1.1 6.6-1.1 3.2-2.5 6.4-1.8 3-3.9 5.9-2.5 2.6-5.3 5-3.1 2.1-6.4 3.9-3.5 1.5-7.2 2.6-3.9.7-7.9 1-4-.1-8.1-.7-4-1-7.9-2.5-3.8-1.8-7.4-4.1-3.4-2.7-6.6-5.8-2.8-3.4-5.3-7.2-2.1-4.1-3.7-8.4-1.3-4.4-2-9.1-.3-4.8 0-9.6.8-4.8 2.1-9.5 1.8-4.6 4.1-9.1 2.8-4.3 6-8.2 3.7-3.6 7.8-6.9 4.5-2.8 9.2-5.2 5.1-1.9 10.4-3.2 5.4-.8 10.9-1 5.6.4 11.2 1.3 5.5 1.6 10.8 3.8 5.1 2.7 10 6 4.5 3.8 8.6 8.1 3.7 4.7 6.9 9.9 2.6 5.5 4.7 11.3 1.5 6.1 2.3 12.3.2 6.3-.3 12.7-1.2 6.3-3.1 12.5-2.5 6-5.6 11.8-3.8 5.5-8.2 10.6-4.9 4.6-10.3 8.7-5.9 3.5-12.1 6.5-6.6 2.2-13.4 3.8-7 .9-14.1 1-7.1-.6-14.2-2-7-2.1-13.7-5-6.4-3.6-12.5-7.8-5.6-5-10.7-10.5-4.6-6-8.5-12.6-3.2-7-5.7-14.3-1.7-7.6-2.6-15.4-.1-7.9.7-15.8 1.5-7.8 4-15.5 3.2-7.4 7.2-14.5 4.8-6.7 10.2-12.9 6.2-5.6 12.9-10.6 7.3-4.2 15-7.7 8.1-2.7 16.4-4.6 8.6-.9 17.3-.9 8.7.8 17.3 2.6 8.4 2.7 16.5 6.3 7.8 4.4 15 9.7 6.8 6 12.9 12.8 5.4 7.4 10 15.3 3.8 8.5 6.7 17.3 1.9 9.1 2.9 18.5 0 9.5-1 18.9-2 9.4-5 18.5-3.9 8.8-8.8 17.3-5.7 7.9-12.3 15.2-7.4 6.6-15.4 12.4-8.7 4.9-17.8 9-9.6 3.1-19.6 5.2-10.1 1-20.3 1-10.3-1.2-20.4-3.3-9.9-3.3-19.4-7.6-9.1-5.3-17.6-11.5-7.8-7.2-14.9-15.1-6.3-8.7-11.6-18.1-4.3-9.9-7.6-20.3-2.2-10.7-3.3-21.6.1-11 1.3-22 2.4-10.9 6-21.5 4.6-10.2 10.3-20 6.8-9.1 14.5-17.5 8.5-7.6 17.9-14.3 10.1-5.6 20.7-10.3 11.1-3.5 22.6-5.8 11.7-1.1 23.5-1 11.8 1.4 23.4 4 11.4 3.8 22.3 8.8 10.4 6.2 20.1 13.4 9 8.2 17.1 17.4 7.1 10 13.1 20.8 4.9 11.4 8.6 23.3 2.4 12.2 3.6 24.7-.2 12.6-1.6 25.2-2.8 12.3-6.9 24.4-5.4 11.6-12 22.7-7.7 10.3-16.5 19.8-9.8 8.6-20.5 16.2-11.5 6.3-23.6 11.5-12.6 3.9-25.6 6.5-13.3 1.2-26.7 1-13.3-1.6-26.5-4.6-12.8-4.4-25.1-10.1-11.7-7-22.7-15.2-10-9.4-19.1-19.8-7.9-11.3-14.7-23.5-5.5-12.8-9.6-26.2-2.7-13.8-3.9-27.9.2-14.2 2-28.3 3.2-13.9 7.8-27.4 6.1-13 13.6-25.4 8.7-11.6 18.6-22.2 11-9.6 23-17.9 12.9-7.2 26.4-12.9 14.2-4.3 28.8-7.1 14.8-1.3 29.7-1 14.9 1.8 29.6 5.2 14.3 5 28 11.4 13 7.9 25.2 17.1 11.2 10.5 21.2 22.1 8.8 12.6 16.3 26.2 6 14.3 10.5 29.2 3 15.4 3 15.4");
* {
  box-sizing: border-box;
}

html, body {
  min-height: 30rem;
}
body {
  background: #1F5C59;
}

.mover {
  z-index: 1;
  position: absolute;
  top: 6rem;
  left: 0;
  width: 3rem;
  height: 3rem;
  margin: 0 auto;
  display: none;
  justify-content: center;
  align-items: center;
  
  i {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    border: 1px solid $light;
    background: $light;
    color: $light;//#1F5C59;
    transform-origin: 50% 50%;
    will-change: transform, opacity;
  }
}
@supports (motion-offset: 0) {
  .mover {
    display: flex;
    motion-offset: 100%;
    motion-path: $path;
    will-change: motion-offset;
  }
}
@supports (offset-distance: 0) {
  .mover {
    display: block;
    offset-distance: 100%;
    offset-path: $path;
    will-change: offset-distance;
  }
}

p {
  display: block;
  color: $light;
  padding: 1rem 1rem 0;
}
code {
  font-family: monospace;
}
a {
  color: $light;
}


svg {
  stroke: $light;
  fill: transparent;
  width: 500px;
  height: 500px;
  position: absolute;
  top: calc(25px + 6rem);
  left: 20px;
  opacity: 0;
  transition: opacity .2s ease;
  &[data-visible] {
    opacity: .1;
    animation: pulse 16s infinite ease-in-out;
  }
}

@keyframes pulse {
  25%, 75% {
    opacity: 0;
  }
}

* {
  box-sizing: border-box;
}
var m = document.querySelectorAll('.mover');

//This is the latest spec as of September 2016
var supportsOffsetDistance = CSS && CSS.supports && CSS.supports('offset-distance', 0);

//This is the earlier spec implemented in Chrome 46+
var supportsMotionOffset = CSS && CSS.supports && CSS.supports('motion-offset', 0);

//motion properties are the old spec
var keyframes = [
  { offsetDistance: '100%', motionOffset: '100%' },
  { offsetDistance: 0, motionOffset: 0 }
];

if (supportsOffsetDistance || supportsMotionOffset) {
  var time = 9000;
  for (var i = 0, len = m.length; i < len; ++i) {
    var player = m[i].animate(keyframes, {
      duration: time,
      iterations: Infinity,
      fill: 'both',
      easing: 'ease-in',
      delay: time * (i / m.length)
    });
    //*
    var scaler = m[i].querySelector('i').animate([
      { transform: 'scale(0)',
        opacity: 0, 
        offset: 0 },
      { transform: 'scale(1)',
        opacity: 1, 
        offset: .01 },
      { transform: 'scale(0)',
        opacity: 0, 
        offset: 1 }
    ], {
      duration: time,
      iterations: Infinity,
      direction: 'normal',
      fill: 'both',
      easing: 'cubic-bezier(0.55,0.055,0.675,0.19)',
      delay: time * (i / m.length)
    });
    //*/
  }
  document.querySelector('.support').innerHTML = 'This browser supports it via the <code>' + (supportsOffsetDistance ? 'offset' : 'motion') + '</code> properties';
} else {
  document.querySelector('.support').textContent = 'This browser does not support it';
}

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

This Pen doesn't use any external JavaScript resources.