html,
body {

  width: 100%;
  height: 100%;
  background: radial-gradient(circle, #005500, #003300, #002200);
  overflow: hidden;
}

#titulo2 {

  text-align: center;
  color: white;
  margin-top: 5vh;
}

.form-group {

  display: flex;
  flex-direction: row;

}

.etiqueta {
  text-align: left;
  width: 50%;
  margin-top: 1vh;
  font-size: 1.4em;
  color: white;
}

.campo {

  text-align: center;
  width: 100%;
  margin-top: 1vh;
  font-size: 1.4em;
}

#div_formulario {

  display: flex;
  justify-content: center;
  align-items: center;


}

#divBtnGuardar {

  margin-top: 3vh;
  text-align: center;
}

#btnGuardar {

  font-size: 1.4em;
  margin-right: 2vw;

}

#btnVerLista {

  font-size: 1.4em;
  margin-left: 2vw;
}