*, *::after, *::before {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  background-color: #000000;
  overflow-y: scroll;
  scroll-timeline: --background y;
  animation-timeline: --background;
  animation: fade-background;
  display: flex;
  flex-direction: column;
}

@keyframes fade-background {
  100% {
    background-color: #87CEEB;
  }
}