scripts.js

window.addEventListener("load", function(){

	function showHideMenu(e){
		e.preventDefault();
		
		if (menuBlock.style.display === "none"){
			menuBlock.style.display = "flex";
		}
		else if (menuBlock.style.display === "flex"){
			menuBlock.style.display = "none";
		}
	}
	var menuBlock = document.getElementsByClassName("menu")[0];
	menuBlock.style.display = "none";
	var burger = document.getElementsByClassName("burger")[0];
	burger.addEventListener('click', showHideMenu);
});