<a href="">Link</a>
a{
  font-size:36px;
  display:block;
  float:left;
  color:blue;
  padding:5px 10px;
  transition:color .5s ease-in;
}

a:hover{
  color:red;
}

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

This Pen doesn't use any external JavaScript resources.