em.error {
    font-style: normal;
    background: url("../img/unchecked.png") no-repeat 0px 0px;
    margin-left: 5px;
    padding-left:15px;
    color:red;
}
em.success {
    font-style: normal;
    background: url("../img/checked.png") no-repeat 0px 0px;
    margin-left: 5px;
    padding-left:15px;
    color:green;
}