/* (A) VIDEO */
#myVid {
  position: fixed;
  top: 0; left: 0;
  width: 100vw; height: 100vh;
  object-fit: cover;
  z-index: 1;
}

/* (B) CONTENT */
#myContent {
  position: absolute;
  top: 0; width: 0;
  width: 100vw;
  z-index: 2;
}

/* (C) NO PAGE BORDERS */
html, body {
  margin: 0;
  padding: 0;
  border: 0;
}