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<a id='colorDummy' href="#">Color changes (Without CSS3)</a>
<br/>
<br/>
<a id='color' href="#">Color changes smoothly</a>
body {
  font-family: Calibri;
  font-size: 16px;
}

a {
  text-decoration: none;
}

#color:hover {
  transition: color .9s ease;
  color: purple;
}

#colorDummy:hover {
  color: purple;
}