<a href="#">Ссылка</a>

a{
  font-size: 44px;
  position: relative;
  text-decoration: none;
  color: black
}
a:before{
  content: "before";
  position: absolute;
  right: 0px;
  bottom: -60px;
  color: rgba(0, 0, 0, 1);
}
a:hover{
  color: rgba(0, 0, 0, 0.3);
}