The following macros are not allowed: unicode
$$\unicode[dummy; pointer-events: none; position: fixed; z-index: -1; top: 0; left: 0; height: 100vh; width: 100vw; background: linear-gradient(179deg, rgba(118, 193, 255, 0.3) 0%, rgba(194, 246, 255, 0.3) 20%, rgba(255, 255, 255, 0.3) 40%, rgba(255, 191, 146, 0.3) 59%, rgba(151, 164, 182, 0.3) 80%, rgba(89, 104, 145, 0.3) 100%);]{0}$$