Gradient Underlines

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Chris Coyier on (Updated on )
a {
  position: relative;
  padding-bottom: 2px;
  text-decoration: none;
}

a:hover::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 0;
  height: 1px;
  width: 100%;
  background: #444;
  background: linear-gradient(left, transparent 0%,#444 50%,transparent 100%);
 }

See the Pen Gradient Underlines by Chris Coyier (@chriscoyier) on CodePen.