.MasterPageMessage { 
    display: none;
    left: 20%;
    margin: 0 auto;
    max-width: 40%;
    position: fixed;
    top: 3px;
    z-index: 99999;
}
#MasterPageMessageDismiss
{
    display: block;
    padding: 7px 0 0 50px;
    text-align: right;
}