html, body {
  background-color: #111;
  width: 100%;
  height: 100%;
  margin: 0;
  border: 0;
  outline: 0;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
}

svg {
  width: 100%; 
  height: auto;
  background: #fff;
}