.stars-background{position:absolute;top:0;left:0;width:100%;height:100%;z-index:1;background:transparent;overflow:hidden;pointer-events:none;background-image:radial-gradient(rgba(255,255,255,.4) 1px,transparent 1px);background-size:50px 50px;opacity:.3;animation:starsTwinkle 10s infinite linear alternate}@keyframes starsTwinkle{0%{opacity:.2;transform:scale(1)}to{opacity:.4;transform:scale(1.05)}}