I am trying to give hover effect, but can't understand how to give it. I am doing like this simple method, i don't know much about the hover effects.
HTML:
<div class="social">
<ul>
<li><a href="#"><img src="http://i.imgur.com/nHJ6Loa.png" alt="facebook" class="fbhover"></a></li>
</ul>
CSS for facebook icon:
.fbhover:hover {
background-image:url(http://i.imgur.com/bdMNHnw.png);
background-repeat:no-repeat;
}