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

body{
	background: rgb(0,0,0);
	background: linear-gradient(90deg, rgba(0,0,0,1) 0%, rgba(51,51,51,1) 50%, rgba(51,51,51,1) 100%);
}


main{
  display: flex;
  justify-content: center;
  align-items: center;
}

img {
	max-height:100%;
	max-width:100%;
	margin:auto;
	display:block
}