body {
  background-color: #000;
  font-family: verdana, Arial, Helvetica, sans-serif;
  color: #fff;
  } 
/*______bouton de fermeture de page_____________________________________________________________________________*/
button {
  display: inline-block;
   position: fixed;
   right: 0px;
 background: rgba(0, 0, 0, 0);
 border: none; 
  color: #fff;
  font-size: 30px;
  width: 80px;
  cursor: pointer;
} 
p {
	text-align: center;
	}
video {
position: absolute;
margin-left: auto;
margin-right: auto;
margin-top: auto;
margin-bottom: auto;
left: 0;
right: 0;
top: 0;
bottom: 0;
max-height: 100%;
max-width: 100%;
}