How to give text shadow using css

Here is a simple way to give shadow to a text using css.

HTML:
<div id="wrapper">
<span class="firstlayer">Text with shadow using CSS</span>
<span class="secondlayer">Text with shadow using CSS</span>
</div>

CSS:
.firstlayer {
font-size: 18px;
font-weight: bold;
color: #aa0000;
position: absolute;
top: 120px;
left: 20px;
z-index: 1;
}


.secondlayer {
font-size: 18px;
font-weight: bold;
color: #aaa;
position: absolute;
top: 122px;
left: 22px;
z-index: 0;
}

This will give you the result as shown in the picture. I hope this will work in all the browsers.