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

html, body {
  height: 100%;
}

body {
  background-color: #0d1117;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo {
  width: min(80vw, 600px);
}