Adding objects to the background

HTML & CSS
64

What happens with this then?

Gets deleted?

  function resetButtons(buttonSelector) {
    const allButtons = document.querySelectorAll(buttonSelector);

    function hideButton(button) {
      button.classList.add("isOpen");
    }
    allButtons.forEach(hideButton);
  }

  function resetPage() {
    resetBackground("body");
    resetButtons(".outer");
  }