text: const tabItems = document.querySelectorAll(".tab-item");
  const tabContentItems = document.querySelectorAll(".tab-content-item");
  
  function selectItem(e) {
    removeBorder();
    removeShow();
    this.classList.add("tab-border");
    const tabContentItem = document.querySelector(`#${this.id}-content`);
    tabContentItem.classList.add("show");
  }
  
  function removeBorder() {
    tabItems.forEach(item => item.classList.remove("tab-border"));
  }
  
  function removeShow() {
    tabContentItems.forEach(item => item.classList.remove("show"));
  }
  
  tabItems.forEach(item => item.addEventListener("click", selectItem));
  