html, body, .vcent {
  height: 100%; }

body {
  margin: 0;
  font-family: "PT Serif", serif;
  color: #333;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale; }

article {
  position: relative; }

section {
  width: 480px;
  margin: 0 auto;
  overflow: hidden; }
  section h1 {
    position: relative;
    height: 42px;
    width: 480px;
    box-sizing: border-box;
    margin: 0;
    padding-left: 1em;
    font: 16px/42px "PT Sans", sans-serif;
    background: skyblue;
    cursor: pointer; }
    section h1 .progress {
      position: absolute;
      top: 0;
      bottom: 0;
      left: 0;
      background: rgba(255, 255, 255, 0.2); }
    section h1 .text {
      position: relative; }
  section p {
    margin-left: 18px;
    margin-right: 18px;
    line-height: 1.46em;
    font-size: 16px;
    text-align: justify; }

footer {
  position: relative;
  height: 100%;
  width: 100%;
  text-align: center;
  font-size: 36px;
  color: #eee;
  background: #333; }
  footer a {
    color: #eee; }

.vcent, .container {
  vertical-align: middle;
  display: inline-block; }

.container {
  width: 60%;
  text-align: justified; }