html{height: 100%;}
body{
    margin: 0;
    background-color: lightgray;
    min-height: 100%;
}
.content-wrapper{
    position: absolute;
    inset:0;
    display: grid;
    place-items: center;
}



/* *** setup360 *** */

.s360, .s360 *{
    box-sizing: border-box;
    padding: 0;
    margin: 0;
}
.s360{
    max-width: var(--maxw);
    width: 95%;
    aspect-ratio: var(--ar);
    margin: 0 auto;
    -webkit-user-select: none;
    -ms-user-select: none;
    user-select: none;
}
.s360 img{
    display: block;
    width: 100%;
    pointer-events: none;
}
.s360{
    cursor: grab;
}
.s360.mouseDown{
    cursor: grabbing;
}