.azul{
  background-color: blue;
}
.vermelho{
  background-color: red;
}

.logo{
  text-align: center;
  line-height: 200px;
}
.txt-banner{
  font-size: 50px;
  font-family: sans-serif;
  color: white;
  margin-top: -600px;
}
.txt-h3{
  font-size: 18px;
  font-family: sans-serif;
  color: black;
  text-align: center;
  margin-top: 40px;
  line-height: 30px;
}
.txt-h4{
  font-size: 18px;
  font-family: sans-serif;
  color: black;
  text-align: center;
}
.back-azul{
  background-color: #3B4E9D;
}
.txt-branco{
  font-size: 18px;
  font-family: sans-serif;
  color: white;
  text-align: center;
  line-height: 40px;
}
.txt-farol{
  text-align: justify;
  font-size: 18px;
  font-family: sans-serif;
  color: black;
  line-height: 35px;
}
.bt-comprar{
  text-align: center;
}
.back-cinza{
  background-color: #F3F3F3;
}
.txt-geral{
  text-align: justify;
  font-size: 18px;
  font-family: sans-serif;
  color: black;
  line-height: 35px;
}
.farol{
  text-align: center;
}
.txt-center{
  text-align: center;
}
/* menu */
@media screen and (max-width:700px){


.txt-banner{
  font-size: 25px;
  font-family: sans-serif;
  color: white;
  margin-top: -215px;
}