* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  width: 100%;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #141414;
}

#main_svg {
  animation: squiglly 0.8s infinite;
}

.noisy__bg {
  position: fixed;
  left: 0;
  top: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  overflow: hidden;
}
.noisy__bg .bg {
  position: absolute;
  width: 300%;
  height: 300%;
  left: -110%;
  top: -110%;
  filter: contrast(100) brightness(0.75) grayscale(1);
  animation: grain 2s steps(1) infinite;
  background-blend-mode: difference;
  background-image: url("https://source.unsplash.com/2bg4wDCGU3g/1280x720");
  background-color: salmon;
  background-size: cover;
}

@keyframes squiglly {
  0% {
    -webkit-filter: url("#squiggly-0");
    filter: url("#squiggly-0");
  }
  25% {
    -webkit-filter: url("#squiggly-1");
    filter: url("#squiggly-1");
  }
  50% {
    -webkit-filter: url("#squiggly-2");
  }
  75% {
    -webkit-filter: url("#squiggly-3");
    filter: url("#squiggly-3");
  }
  100% {
    -webkit-filter: url("#squiggly-4");
    filter: url("#squiggly-4");
  }
}
@keyframes grain {
  0%, to {
    -webkit-transform: translate(0);
    transform: translate(0);
  }
  10% {
    -webkit-transform: translate(-5%, -10%);
    transform: translate(-5%, -10%);
  }
  20% {
    -webkit-transform: translate(-15%, 5%);
    transform: translate(-15%, 5%);
  }
  30% {
    -webkit-transform: translate(7%, -25%);
    transform: translate(7%, -25%);
  }
  40% {
    -webkit-transform: translate(-5%, 25%);
    transform: translate(-5%, 25%);
  }
  50% {
    -webkit-transform: translate(-15%, 10%);
    transform: translate(-15%, 10%);
  }
  60% {
    -webkit-transform: translate(15%);
    transform: translate(15%);
  }
  70% {
    -webkit-transform: translateY(15%);
    transform: translateY(15%);
  }
  80% {
    -webkit-transform: translate(3%, 35%);
    transform: translate(3%, 35%);
  }
  90% {
    -webkit-transform: translate(-10%, 10%);
    transform: translate(-10%, 10%);
  }
}
.support {
  position: absolute;
  right: 10px;
  bottom: 10px;
  padding: 10px;
  display: flex;
}
.support a {
  margin: 0 10px;
  color: #fff;
  font-size: 1.8rem;
  backface-visibility: hidden;
  transition: all 150ms ease;
}
.support a:hover {
  transform: scale(1.1);
}