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HTML

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CSS

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JavaScript

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Babel includes JSX processing.

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HTML 

              
                <div class="svg-wrap">
  <svg viewBox="0 0 400 20" xmlns="http://www.w3.org/2000/svg">
    <path id="svg_line" d="m 1.986,8.91 c 55.429038,4.081 111.58111,5.822 167.11781,2.867 22.70911,-1.208 45.39828,-0.601 68.126,-0.778 28.38173,-0.223 56.76079,-1.024 85.13721,-1.33 24.17379,-0.261 48.42731,0.571 72.58115,0.571"></path>
  </svg>
  <svg viewBox="0 0 400 60" xmlns="http://www.w3.org/2000/svg">
    <path id="svg_marker" d="m 3.518915,27.827324 c 55.429038,4.081 111.581115,5.822 167.117815,2.867 22.70911,-1.208 45.39827,-0.601 68.126,-0.778 28.38172,-0.223 56.76078,-1.024 85.13721,-1.33 24.17378,-0.261 48.4273,0.571 72.58114,0.571"></path>
  </svg>
</div>
<section class="link-svgline">
  <p>Sharks are a group of <a href="#">elasmobranch fish<svg class="link-svgline"><use xlink:href="#svg_line"></use></svg></a> characterized by a <a href="#">cartilaginous skeleton<svg class="link-svgline"><use xlink:href="#svg_line"></use></svg></a> five to seven gill slits on the sides of the head, and <a href="#">pectoral fins<svg class="link-svgline"><use xlink:href="#svg_line"></use></svg></a> that are not fused to the head.</p>
</section>
<section class="link-svgmarker">
  <p>Sharks are a group of <a href="#">elasmobranch fish<svg class="link-svgline"><use xlink:href="#svg_marker"></use></svg></a> characterized by a <a href="#">cartilaginous skeleton<svg class="link-svgline"><use xlink:href="#svg_marker"></use></svg></a> five to seven gill slits on the sides of the head, and <a href="#">pectoral fins<svg class="link-svgline"><use xlink:href="#svg_marker"></use></svg></a> that are not fused to the head.</p>
</section>
!

CSS 

              
                body {
  padding: 100px 50px;
  font-family: "Quicksand", sans-serif;
  font-size: 30px;
  line-height: 1.8;
  color: #fff;
  background-color: #7eb4e2;
}

.svg-wrap {
  position: absolute;
  width: 0px;
  height: 0px;
  overflow: hidden;
}

a {
  color: #404d5b;
  text-decoration: none;
  outline: none;
}

section {
  position: relative;
  z-index: 1; /* needed for setting pseudo-element z-index */
  overflow: hidden;
  backface-visibility: hidden;
}

section a {
  position: relative;
  display: inline-block;
  outline: none;
  color: #404d5b;
  vertical-align: bottom;
  text-decoration: none;
  white-space: nowrap;
}

section a::before,
section a::after {
  pointer-events: none;
  backface-visibility: hidden;
  font-smoothing: antialiased;
}

.link-svgline a svg.link-svgline {
  position: absolute;
  top: 100%;
  left: 0;
  overflow: hidden;
  margin: 0;
  width: 100%;
  height: 20px; 
  transition: stroke-dashoffset 0.3s ease-in-out;
  transform: translateY(-90%);
  fill: none;
  stroke: #b1d474;
  stroke-width: 5;
  stroke-dasharray: 400px; 
  stroke-dashoffset: 400px;
}

.link-svgline a:hover svg.link-svgline {
  stroke-dashoffset: 0px; 
}

.link-svgmarker a svg.link-svgline {
  position: absolute;
  top: 100%;
  left: 0;
  z-index: -1;
  overflow: hidden;
  margin: 0;
  width: 100%;
  height: 60px;
  opacity: 0.5; 
  transition: stroke-dashoffset 0.3s ease-in-out;
  transform: translateY(-100%);
  fill: none;
  stroke: #f0f567;
  stroke-width: 36;
  stroke-dasharray: 400px; 
  stroke-dashoffset: 400px;
}

.link-svgmarker a:hover svg.link-svgline {
  stroke-dashoffset: 0px; 
}
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JS
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999px

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