#myearth {
max-height: 120vw;
overflow: hidden;
}
#shadow-edge {
content: "";
position: absolute;
top: 12%;
bottom: 12%;
left: 12%;
right: 12%;
z-index: 1200;
pointer-events: none;
border-radius: 50%;
box-shadow: 0 0 20px RGBA(0,0,0,0.4) inset;
}