* {
    visibility: hidden;
    margin: 0;
    padding: 0;
}

.content * {
    visibility: visible;
}

/*.section * {*/
/*    display: none;*/
/*    height: 0;*/
/*    width: 0;*/
/*}*/

.footer {
    display: none;
    height: 0;
    width: 0;
}

.modal {
    display: none;
    height: 0;
    width: 0;
}

aside.aside {
    display: none;
    height: 0;
    width: 0;
}