(function () {
const images = [
"https://picsum.photos/seed/cairbray-01/1600/2400",
"https://picsum.photos/seed/cairbray-02/1600/2400",
"https://picsum.photos/seed/cairbray-03/1600/2400",
"https://picsum.photos/seed/cairbray-04/1600/2400",
"https://picsum.photos/seed/cairbray-05/1600/2400"
];
const bg = images[Math.floor(Math.random() * images.length)];
document.body.style.backgroundImage =
'linear-gradient(rgba(5,5,5,.35), rgba(5,5,5,.35)), url("' + bg + '")';
})();