<div class="example">
	<p>Hover on the link below:</p>
	<a href="">This is a link</a>
</div>

<div class="example">
	<a href="">This is another link but<br/> it's split over two lines</a>
</div>
a {
	font-size: 20px;
  color: #ff9900;
  cursor: pointer;
  font-weight: 600;
  text-decoration: none;
  display: inline;
  padding-bottom: 2px;
  transition: all 0.35s linear;
  background: linear-gradient(
    to bottom,
    rgba(#ff9900, 1) 0%,
    rgba(#ff9900, 1) 98%
  );
  background-size: 0px 2px;
  background-repeat: no-repeat;
  background-position: left 100%;

	&:hover {
		background-size: 100% 2px;
	}
}

body {
	color: white;
	font-size: 16px;
	background: black;
}

.example {
	padding: 20px 30px;
}

External CSS

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External JavaScript

This Pen doesn't use any external JavaScript resources.