* {
  box-sizing: border-box;
}
html, body, .page {
  height: 100%;
  margin: 0;
}
p {
  font-family: sans-serif;
}
.page {
  background: #243b55;
  background: linear-gradient(350deg, #141e30, #243b55);
  background-size: cover;
  background-attachment: fixed;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1em;
}
.content {
  text-align: center;
  color: white;
}
.text-red {
  color: #ff0000;
}
.text-green {
  color: #00ff00;
}