CodePen Embed - svg stroke 2

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    <symbol id="icon-heart" viewBox="0 0 40 40">
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<svg class="icon-heart">
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.d-none{
  display: none;
}
.icon-heart{
  width: 40px;
  height: 40px;
  color: #ccc;
  stroke: #aaa;
  stroke-width: 2px;
}
.icon-heart:hover{
  color: red;
  stroke: blue;
}

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