Slide out underline

slide-out-underline.markdown

Slide out underline

A Pen by Richard Leishman on CodePen.

License.

slide-underline.html

<a class="underline">My Link</a>
<a class="underline active">My Link</a>

style.scss

$underline-color: #000;
$underline-distance: 5px;
$underline-thickness: 2px;

a.underline {
  position: relative;
  color: #000;
  text-decoration: none;
  padding-bottom: $underline-distance;
  &:hover, &.active {
    color: #000;
    &:before {
      width: 100%;
    }
  }
  &:before {
    content: "";
    position: absolute;
    width: 0%;
    height: $underline-thickness;
    bottom: 0;
    left: 0;

    background-color: $underline-color;
    transition: width .3s;
  }
}