em

Here's an interesting way to show an image...

<em id="yahoolabel">Yahoo!</em>

em#yahoolabel {
text-indent: -6em;
display: block;
background: url(http://us.i1.yimg.com/us.yimg.com/i/us/nt/b/purpley.1.0.gif) center center no-repeat;
width: 2em;
overflow: hidden;
}