body {
  background-color: black;
}

#container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  margin:0;
  display:flex;
  justify-content:center;
  align-items:center;
}

#content{
  width:500px;
  height:500px;
  border:5px solid white;
  border-radius:50%;
  overflow: hidden;
  background-image: url('https://acegif.com/wp-content/gifs/rainbow-frog-17.gif');
  background-repeat:no-repeat;
  background-position:center top;
  background-size: cover;
  background-clip:text;
  -webkit-background-clip:text;
  color: transparent;
  -webkit-color:transparent;
  font-size: 8px;
  line-height: 8px;
  text-align: justify;
}