body {
    overflow-x: hidden;
    overflow-y: hidden;
    font-family: Arial;
    font-size: 16px;
    background: #fcfefe url(../Sources/Imagenes/login/fondoh2.jpg) no-repeat center top fixed;
    -webkit-background-size: cover;
}
.cuerpo {
    margin: 0px;
    width: 100%;
    height: 100%;
    left: 0%;
    top: 0%;
    position: relative;
}
.img {
    width: 27rem;
    height: auto; 
    position: fixed;
    left: 50%;
    transform: translate(-50%, 5%);
    -webkit-transform: translate(-50%, 5%);
    z-index:20;
}
.contenedor {
    padding: 15px 10px 10px 10px;
    position: fixed;
    border-radius: 5px;
    top: 50%;
    left: 50%;
    width: 25em;
    height: auto;
    transform: translate(-50%, -33%);
    color: white;
    background: rgb(114,192,254);
    background: linear-gradient(318deg, rgba(114,192,254,0.8) 0%, rgba(3,111,195,0.8) 100%);
    z-index:10;
}

    .contenedor .table {
        width: 100%;
    }

        .contenedor .table .center {
            text-align: center;
        }
.titulologin {
    font-size: 1.8rem;
    font-weight: bold;
}
.txt {
    width: 96%;
    padding: 3px 2% 3px 2%;
    font-family: Arial;
    border: 0px solid transparent;
    margin: 0px 0px 10px 0px;
    border-radius: 5px;
}

.lbl {
    color: red;
    font-weight: bold;
    font-size:0.95em;
}

.btnlogin {
    border-radius: 10px;
    background-color: deepskyblue;
    width: 10rem;
    height: 2rem;
    color: white;
    border: 2px solid white;
    transition: background-color .9s;
}

    .btnlogin:hover {
        background-color: rgb(36, 157, 254);
        color: white;
        transition: background-color .9s;
    }

.pie_login {
    z-index: 30;
    position: absolute;
    bottom: 0%;
    right: 0%;
    width: 100%;
    height: 25px;
    text-align: center;
    color: white;
    padding-top: 10px;
    background: rgb(114,192,254);
    background:linear-gradient(318deg, rgba(114,192,254,0.8) 0%, rgba(3,111,195,0.8) 100%);
}

@media only screen and (max-width: 600px) {
    body {
        background: #fcfefe url(../Sources/Imagenes/login/fondov2.jpg) no-repeat center top fixed;
        -webkit-background-size: cover;
        font-size: 20px;
    }
    .img {
        width: 100%;
        height: auto;
        z-index: 20;
    }
    .contenedor {     
        padding:40% 5% 0% 5%;
        top: 0%;
        left: 0%;
        width: 90%;
        height: 100%;
        transform: translate(0%, 0%);
        border-radius:0px;
        z-index:10;
    }
        .contenedor .table {
            width: 100%;
        }
    .lbl {
        font-size: 0.8em;
    }
    .pie_login {
        font-size: 0.8em;
        z-index: 30;
    }  
    .btnlogin {
        margin-top: 20px;
        width: 100%;
    }
}

@media only screen and (max-width: 768px) {
    body {
        background: #fcfefe url(../Sources/Imagenes/login/fondov2.jpg) no-repeat center top fixed;
        -webkit-background-size: cover;
    }
}