Using this CSS:
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button {
border: none;
background: url("Button-LU.gif") center center;
padding: 0;
text-align: center;
margin: 0.5em;
width: 150px;
height: 33px; }
button:active {
background: url("Button-LA.gif") center center; }
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Presto renders the button text as being vertically aligned inside the top of
the button, yet Gecko and Trident render the text being in the middle of the
button.
Anything I'm missing?