text: class App {
      constructor() {
          this.parrafoBoton = document.querySelector('#borrador')
          this.clonBoton = this.parrafoBoton.cloneNode()
          this.clonBoton.innerHTML = 'JAJA'
          document.body.appendChild (this.clonBoton)
  
          this.parrafoBorrar = document.querySelector('#siguiente')
  
          this.parrafoBoton.addEventListener('click',() => {
              if (this.parrafoBorrar) {
                  this.parrafoBorrar.parentNode.removeChild(this.parrafoBorrar)
                  this.parrafoBoton.classList.remove('boton')
                  this.parrafoBorrar = null    
              }
              
          })
      }
  }
  
  
  document.addEventListener('DOMContentLoaded', 
      () => { new App() })