* {
  margin: 0;
  padding: 0;
  opacity: 0.98;
}


.stars {
position:absolute;
top:0;
left:0;
right:0;
bottom:0;
width:100%;
height:100%;
display:block;
}

.stars {
background:#000 url(https://i.postimg.cc/hhFD7Nkf/apps-47636-13819498107583324-fb06b53a-4974-4acb-85e6-f6f363f85ab6-edec48d0-ec35-4a1f-8bf5-c455987b4a.png) repeat top center;
z-index: 0;
}

.twinkling {
background-image: url(https://i.postimg.cc/CLpNr4PF/twinkling.png);
animation: 2s twinkle infinite;
animation-timing-function: linear;
}

@keyframes twinkle {
from {backrgound-position: 0}
to {background-position: -100px 0}
}