html, body{
    width:100%;
    height:100%;
}

body {
    background-color:#fff;
    background-position:center center;
    background-repeat:no-repeat;
    background-size:cover;
    margin:0;
    padding:0;
    font-family:sans-serif;
    font-size:14px;
}

.outer {
    display: flex;
    align-items: center;
    justify-content: center;
    width:100%;
    height:100%;
}

.riquadro-login {
    background-color: #fff;
    border-radius: 15px;
    border: solid 1px #ccc;
    padding: 20px;
    width: 300px;
    -webkit-box-shadow: 4px 4px 12px -3px #000000;
    box-shadow: 4px 4px 12px -3px #000000;
}

.Logo{
    width:120px;
    display:block;
    margin:10px auto 30px auto;
}