.cinza-clarinho{
  color:#cfcfcf
}
body{ 
  background-image: linear-gradient(to right, #0e0d0d , #3b3a3a, #0e0d0d);
  padding-bottom: 150px;
}
footer{
  background-color: #cfcfcf;
  padding: 20px;
  font-weight: bold;
  color:#3b3a3a;
}
input{
  width:150px;
}
#resposta{
  margin-top: 10px;
  color: #e72525; 
}