*{
  padding: 0;
  margin: 0;
}

body{
  height: 100vh;
  background: linear-gradient(
    to top,
    #FFD700 0%,
    #FFD700 50%,
    #0057B8 50%,
    #0057B8 100%
  );
   display: flex;
  justify-content: center;
  align-items: center;
}