Snowfall code

Hello everyone!
Since it's December, I thought I'd share this code with you.
Once you've uploaded everything to the right place, all you have to do is type /snow in the chat and it will start to snow.
You can turn it off by typing it again.

Presentation:
https://youtu.be/8Poe_VW3-oc

Copy this code to the bottom of function_main.js:

/ --- Snow on/off --- //
window.snowEnabled = false;

// --- Snow start ---
window.startSnow = function() {
if (document.getElementById('snow_effect')) return;

let snow = document.createElement("div");
snow.id = "snow_effect";
snow.style.position = "fixed";
snow.style.top = 0;
snow.style.left = 0;
snow.style.width = "100%";
snow.style.height = "100%";
snow.style.pointerEvents = "none";
snow.style.zIndex = "999999";
document.body.appendChild(snow);

for (let i = 0; i < 80; i++) {
let flake = document.createElement("div");
flake.className = "flake";
flake.style.left = (Math.random() * 100) + "vw";
flake.style.animationDuration = (3 + Math.random() * 5) + "s";
flake.style.opacity = (0.3 + Math.random()).toFixed(2);
flake.style.fontSize = (10 + Math.random() * 20) + "px";
flake.style.animationDelay = (Math.random() * 5) + "s";
flake.innerHTML = "";
snow.appendChild(flake);
}
};

// --- Snow start ---
window.stopSnow = function() {
let snow = document.getElementById('snow_effect');
if (snow) snow.remove();
};

Copy this to the bottom of the css/main.css file:

#snow_effect .flake {
position: absolute;
    top: -5vh;
    color: #fff;
    animation-name: fall;
    animation-timing-function: linear;
    animation-iteration-count: infinite;
}
@keyframes fall {
    0%   { transform: translateY(0); }
    100% { transform: translateY(110vh) rotate(360deg); }
}

snowfall.zip