.us-flag {
    background: url("us.png") top left no-repeat;
}
.usa {
    height: 30px;
    background-position: 0px 0px;
}
.canada {
    height: 30px;
    background-position: 0px -41px;
}
.latin {
    height: 30px;
    background-position: 0px -81px;
}