.error{ 
    font:12px "Trebuchet MS", Arial, Helvetica, sans-serif; 
    color:#fff; 
    background:#900; 
    padding:8px 10px 7px 10px;
    margin-left:8px; 
    float:left; 
    z-index:999; 
    position:relative;
}
.valid{ 
    font:12px "Trebuchet MS", Arial, Helvetica, sans-serif; 
    background:#B0FFB0; 
    border:1px #030 solid; 
}