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HTML 

              
                <!-- stroke-dasharray="25.382" stroke-dashoffset="12.691" -->
	<svg width="256" height="320" viewBox="0 0 64 80">
		<defs>
			<!-- for better example: https://developer.mozilla.org/en-US/docs/Web/SVG/Element/clipPath  -->
			<clipPath id="letter-s">
				<path transform="translate(16, 0)" d="M56,0 L24,0 C24,0 0,0 0,24 C0,48 24,48 24,48 L32,48 C32,48 40,48 40,56 C40,64 32,64 32,64 L0,64 L0,80 L32,80 C32,80 56,80 56,56 C56,32 32,32 32,32 L24,32 C24,32 16,32 16,24 C16,16 24,16 24,16 L56,16 L56,0 Z"/>
			</clipPath>
		</defs>
		<g class="circle">
			<!-- we use negative (x, y) coords so that the center of the rect is at (0, 0) so that when we rotate it's rotated at it's center. Also, so that the center is on the path -->
      <rect x="-8" y="-8" rx="8" ry="8" width="16" height="16" style="stroke-dasharray: 49.94157791137695;stroke-dashoffset: 49.94157791137695;transform:rotate(90deg);"/>
    </g>
    <!-- add .001 to third C to fix firefox path issue -->
    <path d="M0,72 L48,72 C48,72 64,72 64,56 C64,40 48,40 48,40 L40,40 C40.001,40.001 24.001,40.001 24.001,24.001 C24.001,8.001 40.001,8.001 40.001,8.001 L64,8 " class="path" />
    <!-- <rect x="16" y="48" height="32" width="56" stroke="red" clip-path="url(#letter-s)" class="red" /> -->
    <path d="M16,80 L72,80" stroke="#00FEEF" stroke-width="0" class="stripe red" clip-path="url(#letter-s)"/>
    <path d="M16,80 L72,80" stroke="#09EBEE" stroke-width="0" class="stripe orange" clip-path="url(#letter-s)"/>
    <path d="M16,80 L72,80" stroke="#19CEEB" stroke-width="0" class="stripe yellow" clip-path="url(#letter-s)"/>
    <path d="M16,80 L72,80" stroke="#28ACEA" stroke-width="0" class="stripe green" clip-path="url(#letter-s)"/>
    <path d="M16,80 L72,80" stroke="#388EE9" stroke-width="0" class="stripe blue" clip-path="url(#letter-s)"/>
    <path d="M16,80 L72,80" stroke="#3D76E0" stroke-width="0" class="stripe purple" clip-path="url(#letter-s)"/>

    <g class="letter" id="#letter-s">
      <path d="M16,72 L16,64 L48,64 " class="first"/>
      <path d="M16,72 L16,80 L48,80 " class="first"/>
      <path d="M48,64 C48,64 56,64 56,56 C56,48 48,48 48,48 " class="second"/>
      <path d="M48,80 C48,80 72,80 72,56 C72,32 48,32 48,32 " class="second"/>
      <path d="M48,32 L40,32 " class="third"/>
      <path d="M48,48 L40,48 " class="third"/>
      <path d="M40,32 C40.001,32.001 32.001,32.001 32.001,24.001 C32,16 40,16 40,16 " class="fourth"/>
      <path d="M40,48 C40.001,48.001 16.001,48.001 16.001,24.001 C16,0 40,0 40,0 " class="fourth"/>
      <path d="M40,0 L72,0 L72,8 " class="fifth"/>
      <path d="M40,16 L72,16 L72,8 " class="fifth"/>
    </g>
</svg>

<div style="margin-top: 50px;">
<button id="restart"><svg height="16px" width="16px" aria-hidden="true" data-prefix="fas" data-icon="sync" class="svg-inline--fa fa-sync fa-w-16" role="img" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path fill="currentColor" d="M440.935 12.574l3.966 82.766C399.416 41.904 331.674 8 256 8 134.813 8 33.933 94.924 12.296 209.824 10.908 217.193 16.604 224 24.103 224h49.084c5.57 0 10.377-3.842 11.676-9.259C103.407 137.408 172.931 80 256 80c60.893 0 114.512 30.856 146.104 77.801l-101.53-4.865c-6.845-.328-12.574 5.133-12.574 11.986v47.411c0 6.627 5.373 12 12 12h200.333c6.627 0 12-5.373 12-12V12c0-6.627-5.373-12-12-12h-47.411c-6.853 0-12.315 5.729-11.987 12.574zM256 432c-60.895 0-114.517-30.858-146.109-77.805l101.868 4.871c6.845.327 12.573-5.134 12.573-11.986v-47.412c0-6.627-5.373-12-12-12H12c-6.627 0-12 5.373-12 12V500c0 6.627 5.373 12 12 12h47.385c6.863 0 12.328-5.745 11.985-12.599l-4.129-82.575C112.725 470.166 180.405 504 256 504c121.187 0 222.067-86.924 243.704-201.824 1.388-7.369-4.308-14.176-11.807-14.176h-49.084c-5.57 0-10.377 3.842-11.676 9.259C408.593 374.592 339.069 432 256 432z"></path></svg></button>
  <div>
!

CSS 

              
                body {
  padding: 1rem;
  background-color: black;
}
svg {
  overflow: visible !important;
  fill: none;
}
.letter path {
  fill: none;
  stroke: #FFF;
}
.circle rect {
  stroke: #fff;
}
!

JS 

              
                var speed = 1;
var path = anime.path('.path');
var restart = document.querySelector('#restart');
var timeline = anime.timeline({});
var pathTimeline = anime.timeline({});

pathTimeline
  .add({
  targets: '.circle rect',
  strokeDashoffset: 49.94157791137695,
  strokeDasharray: 24.97078895568848,
  rotate: '0deg',
  duration: 77 * speed,
  easing: 'linear'
})
  .add({
  targets: '.circle',
  translateX: path('x'),
  translateY: path('y'),
  rotate: path('angle'),
  duration: 2000 * speed,
  // loop: true,
  easing: 'linear',
  offset: 0
})
  .add({
  targets: '.circle rect',
  rx: 0,
  ry: 0,
  strokeDashoffset: 56,
  strokeDasharray: 32,
  easing: 'linear',
  duration: 50 * speed,
});

timeline
  .add({
  targets: '.letter .first',
  strokeDashoffset: [anime.setDashoffset, 0],
  easing: 'linear',
  duration: 450 * speed,
  delay: 77 * speed,
})
  .add({
  targets: '.letter .second',
  strokeDashoffset: [anime.setDashoffset, 0],
  easing: 'linear',
  duration: 556 * speed,
  offset: '-=0'
})
  .add({
  targets: '.letter .third',
  strokeDashoffset: [anime.setDashoffset, 0],
  easing: 'linear',
  duration: 91 * speed,
  offset: '-=0'
})
  .add({
  targets: '.letter .fourth',
  strokeDashoffset: [anime.setDashoffset, 0],
  easing: 'linear',
  duration: 556 * speed,
  offset: '-=0'
})
  .add({
  targets: '.letter .fifth',
  strokeDashoffset: [anime.setDashoffset, 0],
  easing: 'linear',
  duration: 450 * speed,
  offset: '-=0'
})
  .add({
  targets: '.stripe',
  strokeWidth: function(el, i, l) {
    var width = 80/6;
    return (width * l) - (i  * width);
  },
  delay: function(el, i, l) {
    return 200 * i;
  },
  elasticity: 800
});

restart.addEventListener('click', function() {
				timeline.restart();
				pathTimeline.restart();
});
!
999px

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