/* Only the edges of a much larger, continuously moving body enter the page. */
.edge-snake{position:fixed;inset:0;display:block;width:100%;height:100%;pointer-events:none;z-index:0;contain:strict}
body>.masthead,body>main,body>footer{position:relative;z-index:1}
@media(forced-colors:active),print{.edge-snake{display:none}}