Transition color fade on hover

Question

I want to have this h3 fade when the user hovers. Can someone please assist me?

HTML

<h3 class="clicker">test</h3>

CSS

.clicker {
    -moz-transition:color .2s ease-in;
    -o-transition:color .2s ease-in;
    -webkit-transition:color .2s ease-in;
    background:#f5f5f5;padding:20px;
}

.clicker:hover{
    background:#eee;
}