body {
  min-height: 2000px;
  padding-top: 70px;
}
.justificado{
  text-align: justify;
}
.negrita{
  font-weight:bold;
}

.form-signin .form-control {
  position: relative;
  height: auto;
  -webkit-box-sizing: border-box;
     -moz-box-sizing: border-box;
          box-sizing: border-box;
  padding: 10px;
  font-size: 16px;
}
.form-signin .form-control:focus {
  z-index: 2;
}

.espacio{
  margin-bottom: 10px;
}

#boton_lista{
  width: 20%;
}