text: let switchCtn = document.querySelector("#switch-cnt");
  let switchC1 = document.querySelector("#switch-c1");
  let switchC2 = document.querySelector("#switch-c2");
  let switchCircle = document.querySelectorAll(".switch__circle");
  let switchBtn = document.querySelectorAll(".switch-btn");
  let aContainer = document.querySelector("#a-container");
  let bContainer = document.querySelector("#b-container");
  let allButtons = document.querySelectorAll(".submit");
   
  let getButtons = (e) => e.preventDefault()
   
  let changeForm = (e) => {
   
      switchCtn.classList.add("is-gx");
      setTimeout(function(){
          switchCtn.classList.remove("is-gx");
      }, 1500)
   
      switchCtn.classList.toggle("is-txr");
      switchCircle[0].classList.toggle("is-txr");
      switchCircle[1].classList.toggle("is-txr");
   
      switchC1.classList.toggle("is-hidden");
      switchC2.classList.toggle("is-hidden");
      aContainer.classList.toggle("is-txl");
      bContainer.classList.toggle("is-txl");
      bContainer.classList.toggle("is-z200");
  }
   
  let mainF = (e) => {
      for (var i = 0; i < allButtons.length; i++)
          allButtons[i].addEventListener("click", getButtons );
      for (var i = 0; i < switchBtn.length; i++)
          switchBtn[i].addEventListener("click", changeForm)
  }
  
  window.addEventListener("load", mainF);