.tabla-aqi {
  align-content: center;
  font-family: Verdana, Arial, Helvetica, san-serif;
  font-size: 11px;
  text-align: center;
  border-collapse: collapse;
  border: black 1px solid;
  margin: 0 auto;
}

.tabla-aqi td,
.tabla-aqi th {
  border: black 1px solid;
  padding: 3px 8px;
}

#tabla-superior {
  max-width: 800px;
  margin: 0 auto;
}