body {
   margin: 0;
  padding: 0;
  height: 100vh;
  display: flex;               
  justify-content: center;    
  align-items: center;         
  background-color: black;
 
}

img {
  display: block;
  margin: auto;
  width: 75%;
  height: auto;
 border: none;
  outline: none; 
}

.background-video {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  object-fit: cover;
  z-index: -1;
}