Welcome to CODEBOX! (Branch 1891)

✨ ChAiKiDZ

<html>
  <head>
    <title>Let's Start
    </title>
    <style>
      body{
        background-color:black;
        font-size:4em;
        color:red;
        display:fixed;
        position:absolute;
        top:45%;
        width:100%;
        text-align:center;
      }
      #space, .stars {
  overflow: hidden;
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
}

.stars {
  background-image: 
    radial-gradient(2px 2px at 20px 30px, #eee, rgba(0,0,0,0)),
    radial-gradient(2px 2px at 40px 70px, #fff, rgba(0,0,0,0)),
    radial-gradient(2px 2px at 50px 160px, #ddd, rgba(0,0,0,0)),
    radial-gradient(2px 2px at 90px 40px, #fff, rgba(0,0,0,0)),
    radial-gradient(2px 2px at 130px 80px, #fff, rgba(0,0,0,0)),
    radial-gradient(2px 2px at 160px 120px, #ddd, rgba(0,0,0,0));
  background-repeat: repeat;
  background-size: 200px 200px;
  animation: zoom 5s infinite;
  opacity: 0;
}

.stars:nth-child(1) {
  background-position: 50% 50%;
  animation-delay: 0s;
}
.stars:nth-child(2) {
  background-position: 20% 60%;
  animation-delay: 1s;
}
.stars:nth-child(3) {
  background-position: -20% -30%;
  animation-delay: 2s;
}
.stars:nth-child(4) {
  background-position: 40% -80%;
  animation-delay: 3s;
}
.stars:nth-child(5) {
  background-position: -20% 30%;
  animation-delay: 4s;
}

@keyframes zoom {
  0% {
    opacity: 0;
    transform: scale(0.5);
    animation-timing-function: ease-in;
  } 
  85% {
    opacity: 1;
    transform: scale(2.8);
    animation-timing-function: linear;
  }
  100% {
    opacity: 0;
    transform: scale(3.5);
  }
}

/* Demo syles 
------------------------------------- */

body {
  background: #000;
  font-family: 'Orbitron', sans-serif;
}

h1 {
  position: absolute;
  z-index: 1;
  top: 50%;
  left: 50%;
  margin: -1.5em -2.5em;
  width: 5em;
  color: #011;
  font-size: 5em;
  text-align: center;
  text-shadow: 0 0 3px #6cf;
}
h1:first-line {
  font-size: 200%;
}
    </style>
  </head>
  <body>
    
    <h1>CSS starfield</h1>
<div id="space">
  <div class="stars"></div>
  <div class="stars"></div>
  <div class="stars"></div>
  <div class="stars"></div>
  <div class="stars"></div>
</div>

</body>
</html>