.btn_spoff {
width: 136px;
height: 33px;
}

.btn_spoff a {
display: block;
width: 136px;
height: 33px;
background: url(./images/btns/btn_spoff.jpg) no-repeat top left;
}
.btn_spoff a:hover {
background-position: bottom left;
}
.btn_emp {
width: 136px;
height: 33px;
}

.btn_emp a {
display: block;
width: 136px;
height: 33px;
background: url(./images/btns/btn_emp.jpg) no-repeat top left;
}
.btn_emp a:hover {
background-position: bottom left;
}
.btn_sav {
width: 136px;
height: 33px;
}

.btn_sav a {
display: block;
width: 136px;
height: 33px;
background: url(./images/btns/btn_sav.jpg) no-repeat top left;
}
.btn_sav a:hover {
background-position: bottom left;
}
.btn_drv {
width: 136px;
height: 33px;
}

.btn_drv a {
display: block;
width: 136px;
height: 33px;
background: url(./images/btns/btn_drv.jpg) no-repeat top left;
}
.btn_drv a:hover {
background-position: bottom left;
}