body {
  margin: 0;
}

.intro {
  background: url("./telecharger-star.webp"), linear-gradient(233deg, #e56420, #c22525, #3d9c31, #37bbde);
  width: 100%;
  height: 0px;
  background-size: cover;
  background-blend-mode: hard-light;
  -webkit-animation: hue-rotate 3s linear infinite;
          animation: hue-rotate 3s linear infinite;
}

@-webkit-keyframes hue-rotate {
  from {
    -moz-filter: hue-rotate(0);
    -ms-filter: hue-rotate(0);
    filter: hue-rotate(0);
  }
  to {
    -moz-filter: hue-rotate(360deg);
    -ms-filter: hue-rotate(360deg);
    filter: hue-rotate(360deg);
  }
}

@keyframes hue-rotate {
  from {
    -moz-filter: hue-rotate(0);
    -ms-filter: hue-rotate(0);
    filter: hue-rotate(0);
  }
  to {
    -moz-filter: hue-rotate(360deg);
    -ms-filter: hue-rotate(360deg);
    filter: hue-rotate(360deg);
  }
}