#login
        {
            position: fixed;
            top: 25%;
            left: 35%;
            margin-top: -50px;
            margin-left: -100px;
            background-image: url(imagenes/Login.png);
            height: 230px;
            width: 330px;
            text-align: left;
            font-size: 12px;
            font-weight: bold;
            margin-left: auto;
            margin-right: auto;
        }
        #login .form
        {
            margin-left: 30px;
            margin-top: 30px;
        }
        *html .centered
        {
            position: absolute;
        }
        body
        {
            font: normal 12px arial, sans-serif;
            background-image: url(imagenes/fondo.png);
            background-repeat: repeat-x;
        }