.maintenance_notice {
  margin: 0px auto 1em auto;
  width: 40em;
  background: #FFA;
  border: #000;
  padding: 1ex 1em;
  font-weight: bold;
}

.maintenance_notice {
  margin: 0px auto 1em auto;
  width: 40em;
  background: #fee7e6;
  border: #000;
  padding: 1ex 1em;
  font-weight: bold;
}

Use standard wikimedia yellow for notice template.
Use standard wikimedia yellow for notice template.
