}
+.x-btn-primary.x-btn-over .x-btn-left,
.x-btn-left
{
background-position:0 0;
}
+.x-btn-primary.x-btn-over .x-btn-right,
.x-btn-right
{
background-position:0 -21px;
}
+.x-btn-primary.x-btn-over .x-btn-center,
.x-btn-center
{
background-position: 0 -42px;