text: function hideTwos() {
      let items = document.getElementsByClassName("two");
      for (let i = 0; i < items.length; i++) {
          items[i].classList.toggle("hide");
      };
      document.getElementById("button2").classList.toggle("hidden");
  };
  
  function hideThrees() {
      let items = document.getElementsByClassName("three");
      for (let i = 0; i < items.length; i++) {
          items[i].classList.toggle("hide");
      };
      document.getElementById("button3").classList.toggle("hidden");
  };
  
  function hideFours() {
      let items = document.getElementsByClassName("four");
      for (let i = 0; i < items.length; i++) {
          items[i].classList.toggle("hide");
      };
      document.getElementById("button4").classList.toggle("hidden");
  };
  
  function hideFives() {
      let items = document.getElementsByClassName("five");
      for (let i = 0; i < items.length; i++) {
          items[i].classList.toggle("hide");
      };
      document.getElementById("button5").classList.toggle("hidden");
  };
  
  function hideSixes() {
      let items = document.getElementsByClassName("six");
      for (let i = 0; i < items.length; i++) {
          items[i].classList.toggle("hide");
      };
      document.getElementById("button6").classList.toggle("hidden");
  };
  
  function hideSevens() {
      let items = document.getElementsByClassName("seven");
      for (let i = 0; i < items.length; i++) {
          items[i].classList.toggle("hide");
      };
      document.getElementById("button7").classList.toggle("hidden");
  };