d9-eql/web/themes/custom/eql/scripts/main.js

console.log('salut');
// menu burger open

var burger = document.getElementById("block-burger");
var burgertitle = document.getElementById("block-burger-menu");


burgertitle.addEventListener("click", toggleMenu);

function toggleMenu(event) {
  console.log(event);
  burger.classList.toggle('opened');
}