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

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  background-color: #161616;
  font-family: Arial, Helvetica, sans-serif;
  color: #fff;
  display: flex;
  flex-direction: column;
}