*, *:before, *:after { -webkit-box-sizing: border-box; -moz-box-sizing: border-box; box-sizing: border-box; }
html, body { padding: 0; margin: 0; }
html {
  font-family: "Arial";
  line-height: 1.5;
  height: 100%;
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
body {
  height: 100%;
  text-align: center;
  overflow-x: hidden;
  color: rgba(100,0,200,1);
}
a { color: inherit; }
nav {
  width: 100%;
  position: fixed;
  bottom: 0;
  left: 0;
  margin: 0 auto;
  -webkit-transition: all 250ms cubic-bezier(0.74, 0.12, 0.9, 0.3);
  transition: all 250ms cubic-bezier(0.74, 0.12, 0.9, 0.3);
}
button {
  background-color: rgba(100,0,200,0.8);
  color: white;
  border: 0;
  outline: 0;
  margin: 1em 0.2em;
  padding: 0.5em;
  cursor: pointer;
  -webkit-transition: all 250ms cubic-bezier(0.74, 0.12, 0.9, 0.3);
  transition: all 250ms cubic-bezier(0.74, 0.12, 0.9, 0.3);
}
button:hover {
  background-color: white;
  color: rgba(100,0,200,1);
}

section {
  width: 100%;
  height: 100%;
  margin: 0 auto;
}
section:first-child{
  background-color: rgba(100,0,200,1);
  overflow: hidden;
  color: white;
}
section:first-child > div {
  position: relative;
  top: 50%;
  left: 50%;
  -webkit-transform: translate3D(-50%, -50%, 0);
  -moz-transform: translate3D(-50%, -50%, 0);
  transform: translate3D(-50%, -50%, 0);
}
h2, p {
  width: 60%;
  margin: 1em auto;
}