:root {
  background: #000;
  color: #000;
}

* {
  box-sizing: border-box;
}

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

body {
  min-height: 100vh;
  overflow: hidden;
  background: #000;
}

.blank-screen {
  width: 100vw;
  min-height: 100vh;
  background: #000;
}