body, html {
  background-color: #FFFFFF;
  color: #000000;
  font-family: monospace;
  width: 100%;
  height: 100%;
  margin: 0 0;
  padding: 0 0;
}
@media (prefers-color-scheme: dark) {
  body, html {
    background-color: #000000;
    color: #FFFFFF;
    font-family: monospace;
    width: 100%;
    height: 100%;
    margin: 0 0;
    padding: 0 0;
  }
}

#container {
  width: 100%;
  margin: 0 0;
  padding: 0 0;
  background-color: #FFFFFF;
}
@media (prefers-color-scheme: dark) {
  #container {
    width: 100%;
    margin: 0 0;
    padding: 0 0;
    background-color: #000000;
  }
}

.centred_content {
  margin: 0 auto;
  padding: 0 0;
  text-align: center;
}

.heading {
  font-size: 30px;
  text-align: center;
  color: #000000;
  padding-top: 15px;
  padding-bottom: 10px;
}
@media (prefers-color-scheme: dark) {
  .heading {
    font-size: 30px;
    text-align: center;
    color: #FFFFFF;
    padding-top: 15px;
    padding-bottom: 10px;
  }
}

.heading-white {
  font-size: 30px;
  text-align: center;
  color: #FFFFFF;
  padding-top: 15px;
  padding-bottom: 10px;
}