html, body {
  height: 100%;
  margin: 0;
  padding: 0;
  background: var(--bg-body);
  overflow-x: hidden; /* prevents side whites */
}
body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
main {
  flex: 1;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}