A quick utility file to add CSS to a Framer Project

addStyles.js

function Add() {
  let css = document.createElement("link");
  css.href = "path/to/styles.css";
  css.id = "framerCustomCSS";
  document.head.appendChild(css);
}

if (
  document.getElementById("framerCustomCSS")
) {
  console.log("Loading CSS...");
  Add();
  console.log("CSS Loaded!");
} else {
  console.log("CSS already loaded!");
  return;
}

Add();