=link($color: $link-color, $hover-color: $link-hover-color, $border-width: 1px, $font-weight: normal)
  border-bottom: $border-width solid transparent
  color: $color
  font-weight: $font-weight
  transition: all .1s ease-in-out
  &:hover
    border-color: $hover-color
    border-width: $border-width
    color: $hover-color