html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  background-color: black;
}

.stretch {
  position: relative;
  height: 100%;
  max-height: 100%;
  width: 100%;
  max-width: 100%;
}

body::-webkit-scrollbar { 
  display: none;  /* Safari and Chrome */
}