body {
  overflow: hidden;
  margin: 0;
}
body:before {
  content: '';
  background: #c4252a url(http://subtlepatterns2015.subtlepatterns.netdna-cdn.com/patterns/cheap_diagonal_fabric.png);
  background-blend-mode: multiply;
  mix-blend-mode: multiply;
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: 10;
}

canvas {
  opacity: 0;
  transition: 1s opacity cubic-bezier(0.55, 0, 0.1, 1);
}
canvas.ready {
  opacity: 0.4;
}

.intro {
  position: absolute;
  padding: 20px;
  -webkit-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
  left: 50%;
  top: 50%;
  text-align: center;
  color: #fafafa;
  z-index: 10;
  width: 100%;
  max-width: 700px;
  font-family: "HelveticaNeue-Light", "Helvetica Neue Light", "Helvetica Neue", Helvetica, Arial, "Lucida Grande", sans-serif;
  text-shadow: 0px 5px 20px black;
}
.intro h1 {
  font-size: 40px;
  font-weight: 300;
  letter-spacing: 2px;
}
.intro p {
  letter-spacing: 1px;
  line-height: 24px;
}