body::after{content:"";position:fixed;inset:0;z-index:1;pointer-events:none;background:linear-gradient(115deg,rgba(255,255,255,.045),transparent 32%),radial-gradient(ellipse at center,transparent 40%,rgba(0,0,0,.26) 100%)}
.code{position:relative;z-index:2;padding:.08em .18em .14em;border-top:1px solid rgba(255,255,255,.25);border-bottom:1px solid rgba(255,255,255,.12);text-shadow:0 2px 25px rgba(0,0,0,.6),0 0 1px white}
.caption{z-index:2;padding:9px 14px;background:rgba(0,0,0,.12);border:1px solid rgba(255,255,255,.12)}