* {
  margin: 0;
  padding: 0;
  text-decoration: none;
  list-style: none;
  font-family: Arial, Helvetica, sans-serif;
}
/* ########################################## NOTAS TECNICAS ########################################## */
/*HEADER*/
#header {
  background-color: white;
  height: 57px;
}
#header-logo {
  width: 20px;
}
/*SECCION NOTAS*/
#seccion-notas {
  background-image: linear-gradient(rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0.8)),
    url(../imagenes/notasTecnicas/fondonotas.jpg);
  background-position: center center;
  background-repeat: no-repeat;
  background-size: cover;
  margin-top: 56px;
}
#seccion-notas h1 {
  text-decoration: underline;
}