text: function entrei(){
      document.getElementById("quadrado").style.backgroundColor = 'red';
  }
  
  function sai(){
      document.getElementById("quadrado").style.backgroundColor = 'blue';
  }
  
  function pressionei(){
      document.getElementById("quadrado").style.backgroundColor = 'green';
  }
  
  function soltei(){
      document.getElementById("quadrado").style.backgroundColor = 'black';
  }
  
  function movimentei(){
      document.getElementById("quadrado").style.backgroundColor = 'yellow';
  }