#content_div
    {
    padding: 20px;
    border-bottom: 1px solid red;
    display: none;
    }
    
#login_div
    {
    padding: 30px;
    display: none;
    }
    
.blackSanSerif, .blackSanSerif td
    {
    font-family: Tahoma, san-serif;
    font-size: 12px;
    }
    
.StandardTable, .StandardTable td
    {
    margin: 0px;
    padding: 0px;
    border: 0px;
    border-spacing: 0px;
    }
    
.StandardTable td
    {
    border-collapse: collapse;
    }