.editor_ok_button {
    background: url(../images/save.png) no-repeat center center;
    width: 16px;
    height: 16px;
    border: none;
}

.editor_cancel_button {
    background: url(../images/cancel.png) no-repeat center center;
    width: 16px;
    height: 16px;
    border: none;
}