html,
body {
  position: relative;
  width: 100vw;
  height: 100vh;
  padding: 0;
  margin: 0;
}

body {
  box-sizing: border-box;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    Oxygen-Sans, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
}