body {
    font-family: Verdana, "Lucida Sans", Arial, sans-serif; 
    font-size: 100%; 
    color: black; 
    background-color: lightseagreen;
    opacity: 1.0; 
}
* { box-sizing: border-box; } /* include the padding, border & margin in the total width and height of an element */

.head { 
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 64px;
    font: 16px Verdana;
    padding: 16px; 
    margin: 0;
    text-align: center; 
    color: white; 
    background-color: #9933aa; 
    z-index: 10;
}

/* MAIN Containers  */
.main {
    position: relative;
    top: 64px;
    margin: 0 auto 0;
    max-width: 100%;
    padding: 3px;
    font-size: 18px;
    background-color: cornsilk;
}

@media screen and (min-width: 1156px) {
    .main {max-width: 1156px; padding: 48px 64px;}
}