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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.

            
              
<!-- <svg id="icon-star" width="32" viewBox="-1 0 34 32">
<title>star</title>
<path class="gradient-path" d="M16 23l9 6-4-10 9-6h-10l-4-10-4 10h-10l9 6-4 10 9-6z"></path>
</svg> -->
<svg id="icon-heart" width="32" viewBox="-2 -2 32 32">
<title>heart</title>
<path class="gradient-path" d="M14 26c-0.25 0-0.5-0.094-0.688-0.281l-9.75-9.406c-0.125-0.109-3.563-3.25-3.563-7 0-4.578 2.797-7.313 7.469-7.313 2.734 0 5.297 2.156 6.531 3.375 1.234-1.219 3.797-3.375 6.531-3.375 4.672 0 7.469 2.734 7.469 7.313 0 3.75-3.437 6.891-3.578 7.031l-9.734 9.375c-0.187 0.187-0.438 0.281-0.688 0.281z"></path>
</svg>
            
          
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              html { background: #222; height: 100%; }
body { min-height: 100%; display: flex; justify-content: space-between; }
svg { display: block; margin: auto; max-width: 500px; width: 90%; max-height: 90vh; }

.gradient-path { 
  fill: none; /* No fill so we're just enjoying the stroke */
  stroke-width: 2; /* Make the stroke a bit wider so we can see it better */
  stroke-linecap: round; /* Make the stroke edges nice & round */
  stroke-linejoin: round; /* Smooth out corners */
  
  --total-offset: 0; /* CSS var that will be populated by the JS for the CSS animation */
  animation: stroke-anim 6s linear infinite;
}

/* Go from the current `stroke-dashoffset` (set in the JS), to the total offset (provided by the JS in the CSS var */
@keyframes stroke-anim {
  to { stroke-dashoffset: var(--total-offset); }
}
            
          
!
            
              console.clear();

// How many copies of the path to make (more = smoother gradient, but more clones of the path)
var resolution = 14;

// Using Array.from to...
var gradientPaths = Array.from(
  
  // ...find all .gradient-path elements...
  document.querySelectorAll('.gradient-path'),
  
  // ...and run this function over them:
  function(path){

    // Get the length of the path
    var length = path.getTotalLength();
    
    // How big each segment of the gradient should be
    var segmentLength = ( length / resolution );

    // Create a group for all of the new paths to reside in
    var g = document.createElementNS('http://www.w3.org/2000/svg', 'g');
    path.parentNode.insertBefore(g, path.nextSibling);
    
    // Apply some styles for all the cloned paths on the <g> to be inherited
    g.style.strokeDasharray =  segmentLength + ' ' + ( length - segmentLength );

    for (var i = 0; i < resolution; i++) {
      // Clone the path
      var c = path.cloneNode();
      
      // Give it a nice color spanning the entire spectrum
      c.style.stroke = 'hsl(' + (i / resolution) * 360 + ', 75%, 60%)';
      
      // How much the stroke-dash should be offset (`stroke-dashoffset`)
      var offset = length * ( i / resolution );
      c.style.strokeDashoffset = offset;
      
      // Pass along the necessary offset for the CSS animation as a CSS var
      c.style.setProperty('--total-offset', (length + offset) );
      
      // Add the cloned path to the group
      g.appendChild(c);
    }

    return path;

  });
            
          
!
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