#loginDiv{
    display: none; 
    position: fixed;  
    width: 450px; 
    height: 200px; 
    background: #fff; 
    border: solid 1px #ccc; 
    padding: 10px; 
    border-radius: 3px; 
    box-shadow: #ccc 0 0 10px;
}

.loginCaption{
    display: block;
    margin-bottom: 20px;
    font-size: 13px;
    color: #f00;
}