body {
  background-image: conic-gradient(red, yellow, green);
  background-repeat:no-repeat;
  background-attachment:fixed;
  background-size: cover;
  text-align: center;
  font-family: Calibri;
  padding: 10px;
  margin: auto;
  width: fit-content
}
h2 {
    font-family: Arial, sans-serif; color: blueviolet; text-align: center; font-size: 2.5em;
}