.sfondo {
width: 100%; height: 100%; top: 0; left: 0;
background: url(images/LENBG.jpg) no-repeat center top; position: fixed; z-index: -1;
-webkit-background-size: cover;
-moz-background-size: cover;
-o-background-size: cover;
background-size: cover;
}

.element.style {
    z-index: 4;
    background-color: rgb(243, 243, 241);
    opacity: 1;
    text-align: left;
    color: RED;
    font-family: Arial;
    font-weight: normal;
    font-style: normal;
    text-decoration: none;
    font-size: 10pt;
    cursor: default;
}