html {
  min-height: 100%;
  background: #111111 url(/img/lp-bg-desktop.jpg) no-repeat center / cover fixed;
}

@media (max-width: 768px) {
  html {
    background-image: url(/img/lp-bg-mobile.jpg);
  }
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logotype {
  width: min(80%, 600px);
  height: auto;
}