/* Remove default spacing and ensure full height */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
  background-color: black;
  font-family: sans-serif;
}

/* Centering wrapper */
body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}

/* Optional: responsive image */
img {
  max-width: 300px;
  max-height: 500vh;
  width: 300px;
  height: auto;
  margin-top: 1rem;
}
img{
  -webkit-animation: psy linear 10s infinite;
  -moz-animation: psy linear 10s infinite;
  -o-animation: psy linear 10s infinite;
  animation: psy linear 10s infinite;
}

@-webkit-keyframes psy {
  0% {
    -webkit-filter: hue-rotate(0deg) saturate(2) invert(0);
  }
  
  50% {
    -webkit-filter: hue-rotate(360deg) saturate(8) invert(.25);
  }
  
  100% {
    -webkit-filter: hue-rotate(0deg) saturate(2) invert(0);
  }
}