I have a code:
a.button {
display: block;
width: 34px;
height: 34px;
float:left;
background: url('/images/button_buy_now1 .gif') no-repeat !important;
color: #000000;
}
a.button:visite d {
background:url( '/images/button_buy_now. gif') no-repeat !important;
color: #000000;
display: block;
width: 34px;
height: 34px;
float:left;
}
...