document.getElementById("main").parentNode.childNodes[0].classList.add("header_bar"); document.getElementById("main").parentNode.style = "padding: 0; margin: 0"; document.getElementById("main").parentNode.parentNode.parentNode.style = "padding: 0"; // Get references to the elements let main = document.getElementById('main'); let main_parent = main.parentNode; let extensions = document.getElementById('extensions'); // Add an event listener to the main element main_parent.addEventListener('click', function(e) { // Check if the main element is visible if (main.offsetHeight > 0 && main.offsetWidth > 0) { extensions.style.display = 'flex'; } else { extensions.style.display = 'none'; } });