text: 
              window.onload = function(){
  
                  setInterval(() => {
                      var dt = new Date()
                      var HH = dt.getHours()
                      var mm = dt.getMinutes()
                      var ss = dt.getSeconds()
  
                      document.querySelector('#HH').innerHTML = padZero(HH)
                      document.querySelector('#mm').innerHTML = padZero(mm)
                      document.querySelector('#ss').innerHTML = padZero(ss)
                  }, 1000)
              }
  
              function padZero(n){
                  return n > 9 ? n : '0' + n
              }
          