facebook like red notification simple css technique

While developing my current web project, i came across a requirement which has to be lashed with a notification similar style as facebook.

After puting some effort i found out the following implementation.

    

Here is a explanation of the above implementation using CSS and simple javascript.

The css

<style>

.noti_Container {
position:relative;
border:1px solid blue; /* This is just to show you where the container ends */
width:16px;
height:16px;
cursor: pointer;
}
.noti_bubble {
position:absolute;
top: -8px;
right:-6px;
padding-right:2px;
background-color:red;
color:white;
font-weight:bold;
font-size:0.80em;

border-radius:2px;
box-shadow:1px 1px 1px gray;
}

</style>

The HTML code

<div onclick="return f1();">
<img src="friends.png" style="border:none;"/>
<div id="n1">2</div>
</div>

The small javascript code to add some more functionality

<script>
function f1()
{
document.getElementById("n1").style.visibility='hidden';
}
</script>

The final implementation can be found here at http://fb.walletchange.com/profile.php