body::before{content:"";position:fixed;top:0;left:-150%;width:150%;height:100%;background:linear-gradient(100deg,rgba(255,255,255,0) 0%,rgba(255,255,255,0) 40%,rgba(255,255,255,0.25) 48%,rgba(255,255,255,0.55) 50%,rgba(255,255,255,0.25) 52%,rgba(255,255,255,0) 60%,rgba(255,255,255,0) 100%);pointer-events:none;z-index:9999;animation:glanz-sweep 20s ease-in-out infinite}@keyframes glanz-sweep{0%{left:-150%}40%{left:150%}100%{left:150%}}